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A set of golden lights hovering silently in the night sky in a “V” formation stopped traffic on the New Jersey Turnpike, but were the drivers seeing visitors from outer space or just a set of military flares flaming out?At least 15 people contacted police to report seeing strange lights in the New Jersey sky over the weekend. More than a dozen people, including two Carteret, N.J., police officers, saw the lights last weekend, and several of the witnesses described a sense of serenity that seemed to emanate from the celestial display. The gold lights hovered for awhile, according to the witnesses, and then disappeared.To some, the description sounded very much like the so-called Phoenix Lights, another V formation that appeared in the sky near Phoenix in March 1997. Like the apparition in New Jersey, the Phoenix lights were caught on videotape. The formation also matches reports of unexplained lights in the sky from all across the United States, as well as England and Europe.
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更多 “问答题A set of golden lights hovering silently in the night sky in a “V” formation stopped traffic on the New Jersey Turnpike, but were the drivers seeing visitors from outer space or just a set of military flares flaming out?At least 15 people contacted police to report seeing strange lights in the New Jersey sky over the weekend. More than a dozen people, including two Carteret, N.J., police officers, saw the lights last weekend, and several of the witnesses described a sense of serenity that seemed to emanate from the celestial display. The gold lights hovered for awhile, according to the witnesses, and then disappeared.To some, the description sounded very much like the so-called Phoenix Lights, another V formation that appeared in the sky near Phoenix in March 1997. Like the apparition in New Jersey, the Phoenix lights were caught on videotape. The formation also matches reports of unexplained lights in the sky from all across the United States, as well as England and Europe.” 相关考题
考题
Text 2 To understand how astrology works, we should first take a quick look at the sky. Although the stars are at enormous distances, they do indeed give the impression of being affixed to the inner surface of a great hollow sphere surrounding the earth. Ancient people, in fact, literally believed in the existence of such a celestial sphere. As the earth spins on its axis, the celestial sphere appears to turn about us each day, pivoting at points on a line with the earth's axis of rotation. This daily turning of the sphere carries the stars around the sky, causing most of them to rise and set, but they, and constellations they define, maintains fixed patterns on the sphere, just as the continent of Australian maintains its shape on a spinning globe of the earth. Thus the stars were called fixed stars.The motion of the sun along the ecliptic is, of course, merely a reflection of the revolution of the earth around the sun, but the ancients believed the earth was fixed and the sun had an independent motion of its own, eastward among the stars. The glare of sunlight hides the stars in daytime, but the ancients were aware that the stars were up there even at night, and the slow eastward motion of the sun around the sky, at the rate of about thirty degrees each month, caused different stars to be visible at night at different times of the year.The moon, revolving around the earth each month, also has an independent motion in the sky. The moon, however, changes its position relatively rapidly. Although it appears to rise and set each day, as does nearly everything else in the sky, we can see the moon changing position during as short an interval as an hour or so. The moon's path around the earth lies nearly in the same plane as the earth's path around the sun, so the moon is never seen very far from the ecliptic in the sky. There are five other objects visible to the naked eye that also appear to move in respect to the fixed background of stars on the celestial sphere. These are the planets Mercury, Venus, Mars, Jupiter, and the Saturn. All of them revolve around the sun in nearly the same plane as the earth does, so they, like the moon, always appear near the ecliptic. Because we see the planets from the moving earth, however, they behave in a complicated way, with their apparent motions on the celestial sphere reflection both their own independent motions around the sun and our motion as well.第26题：The ancient people believed that ________.[A] the earth was spinning on the axis of the sky[B] the sky was a hollow sphere spinning around the earth[C] the patterns of stars on the sky would never change[D] the stars around the sky were not stationary
考题
Given:Which code, inserted at line 4, guarantees that this program will output [1, 2]()?
A.Set set = new TreeSet();B.Set set = new HashSet();C.Set set = new SortedSet();D.List set = new SortedList();E.Set set = new LinkedHashSet();
考题
The car ________ and stopped at the red traffic lights.Agot onBgot offCslowed downDpicked up
考题
What is the price of anarchy?Technically,in transportation engineering,the price of anarchy describes the difference between what happens when every driver selfishly picks the fastest route and what the socially optimal traffic outcome would be.In the pre-mobile-app days,drivers'selfishness was limited by their knowledge of the road network.In those conditions,both simulation and real-world experience showed that most people stuck to the freeways and arterial roads.Sure,there were always people who knew the crazy,back-road route but the bulk of people just stuck to the routes that transportation planners had designated as the preferred way to get from a to B But a new body of research at the University of California's Institute of Transportation Studies suggests that the reality is far more complicated.In some scenarios,traffic-beating apps might work for an individual,but make congestion worse overall.And autonomous vehicles,touted as an answer to traffic streets,could deepen the problem This problem has been vastly overlooked,"Alexandre Bayen,the director of UC Berkeley,'s Institute of Transportation Studies,told me.It is just the beginning of something that is gonna be much worse.The situation then gets much worse because hundreds of people just like you want to go on the side streets,which were never designed to handle the traffic,Bayen says."So,now,in addition to congesting the freeway,you've also congested the side streets and the intersections While it's clear that these apps can put stress on local side streets,we still don't know what effect they may have on highways,or for traffic systems as a whole.This is an open problem,said Bayen Hence,we need to be very cautious in our conclusions They re building on pioneering work by researchers like Hani Mahmassani into the role of real-time information in shaping traffic conditions.In 1991,Mahmassani challenged what he took to be"possible misconceptions that information will automatically lead to improvements in traffic conditions.He was not alone.That same year,other researchers noted that information can cause drivers to change their departure times in such a way as to exacerbate congestion Nonetheless,most of this early work showed that when the percentage of drivers with access to in formation was low there was a major benefit for better-informed drivers.So,in the early days of Waze and Google Maps and automated routing at UPS,many individuals did experience substantial benefits rom these applications.The roads,as a whole,were probably also flowing better.Bayen does,in fact,have a suggestion for improving these apps,but the companies might not like it.He thinks the apps should spread out drivers on different routes intentionally,which would require collaboration among the mapping apps.Given the cutthroat nature of competition in Silicon valley thats a tough sell but it might help bring down the price of anarchy
Which of the following is true about the mapping apps?A.It helps people avoid congestion and keep traffic flowing
B.It considers the conditions of the whole traffic system
C.It eases the traffic pressure of the main roads
D.It increases traffic congestion in general
考题
What is the price of anarchy?Technically,in transportation engineering,the price of anarchy describes the difference between what happens when every driver selfishly picks the fastest route and what the socially optimal traffic outcome would be.In the pre-mobile-app days,drivers'selfishness was limited by their knowledge of the road network.In those conditions,both simulation and real-world experience showed that most people stuck to the freeways and arterial roads.Sure,there were always people who knew the crazy,back-road route but the bulk of people just stuck to the routes that transportation planners had designated as the preferred way to get from a to B But a new body of research at the University of California's Institute of Transportation Studies suggests that the reality is far more complicated.In some scenarios,traffic-beating apps might work for an individual,but make congestion worse overall.And autonomous vehicles,touted as an answer to traffic streets,could deepen the problem This problem has been vastly overlooked,"Alexandre Bayen,the director of UC Berkeley,'s Institute of Transportation Studies,told me.It is just the beginning of something that is gonna be much worse.The situation then gets much worse because hundreds of people just like you want to go on the side streets,which were never designed to handle the traffic,Bayen says."So,now,in addition to congesting the freeway,you've also congested the side streets and the intersections While it's clear that these apps can put stress on local side streets,we still don't know what effect they may have on highways,or for traffic systems as a whole.This is an open problem,said Bayen Hence,we need to be very cautious in our conclusions They re building on pioneering work by researchers like Hani Mahmassani into the role of real-time information in shaping traffic conditions.In 1991,Mahmassani challenged what he took to be"possible misconceptions that information will automatically lead to improvements in traffic conditions.He was not alone.That same year,other researchers noted that information can cause drivers to change their departure times in such a way as to exacerbate congestion Nonetheless,most of this early work showed that when the percentage of drivers with access to in formation was low there was a major benefit for better-informed drivers.So,in the early days of Waze and Google Maps and automated routing at UPS,many individuals did experience substantial benefits rom these applications.The roads,as a whole,were probably also flowing better.Bayen does,in fact,have a suggestion for improving these apps,but the companies might not like it.He thinks the apps should spread out drivers on different routes intentionally,which would require collaboration among the mapping apps.Given the cutthroat nature of competition in Silicon valley thats a tough sell but it might help bring down the price of anarchy
What is Mahmassani,s attitude to the improvement of traffic brought by information?A.Skeptical
B.Approving
C.Uncertain
D.Condemning
考题
What is the price of anarchy?Technically,in transportation engineering,the price of anarchy describes the difference between what happens when every driver selfishly picks the fastest route and what the socially optimal traffic outcome would be.In the pre-mobile-app days,drivers'selfishness was limited by their knowledge of the road network.In those conditions,both simulation and real-world experience showed that most people stuck to the freeways and arterial roads.Sure,there were always people who knew the crazy,back-road route but the bulk of people just stuck to the routes that transportation planners had designated as the preferred way to get from a to B But a new body of research at the University of California's Institute of Transportation Studies suggests that the reality is far more complicated.In some scenarios,traffic-beating apps might work for an individual,but make congestion worse overall.And autonomous vehicles,touted as an answer to traffic streets,could deepen the problem This problem has been vastly overlooked,"Alexandre Bayen,the director of UC Berkeley,'s Institute of Transportation Studies,told me.It is just the beginning of something that is gonna be much worse.The situation then gets much worse because hundreds of people just like you want to go on the side streets,which were never designed to handle the traffic,Bayen says."So,now,in addition to congesting the freeway,you've also congested the side streets and the intersections While it's clear that these apps can put stress on local side streets,we still don't know what effect they may have on highways,or for traffic systems as a whole.This is an open problem,said Bayen Hence,we need to be very cautious in our conclusions They re building on pioneering work by researchers like Hani Mahmassani into the role of real-time information in shaping traffic conditions.In 1991,Mahmassani challenged what he took to be"possible misconceptions that information will automatically lead to improvements in traffic conditions.He was not alone.That same year,other researchers noted that information can cause drivers to change their departure times in such a way as to exacerbate congestion Nonetheless,most of this early work showed that when the percentage of drivers with access to in formation was low there was a major benefit for better-informed drivers.So,in the early days of Waze and Google Maps and automated routing at UPS,many individuals did experience substantial benefits rom these applications.The roads,as a whole,were probably also flowing better.Bayen does,in fact,have a suggestion for improving these apps,but the companies might not like it.He thinks the apps should spread out drivers on different routes intentionally,which would require collaboration among the mapping apps.Given the cutthroat nature of competition in Silicon valley thats a tough sell but it might help bring down the price of anarchyAccording to the last paragraph,Bayen suggests that the mapping apps shouldA.cooperate to direct drivers to different paths
B.obey the order of the traffic controllers strictly
C.collaborate with the drivers to provide better service
D.clearly define their respective division of work
考题
What is the price of anarchy?Technically,in transportation engineering,the price of anarchy describes the difference between what happens when every driver selfishly picks the fastest route and what the socially optimal traffic outcome would be.In the pre-mobile-app days,drivers'selfishness was limited by their knowledge of the road network.In those conditions,both simulation and real-world experience showed that most people stuck to the freeways and arterial roads.Sure,there were always people who knew the crazy,back-road route but the bulk of people just stuck to the routes that transportation planners had designated as the preferred way to get from a to B But a new body of research at the University of California's Institute of Transportation Studies suggests that the reality is far more complicated.In some scenarios,traffic-beating apps might work for an individual,but make congestion worse overall.And autonomous vehicles,touted as an answer to traffic streets,could deepen the problem This problem has been vastly overlooked,"Alexandre Bayen,the director of UC Berkeley,'s Institute of Transportation Studies,told me.It is just the beginning of something that is gonna be much worse.The situation then gets much worse because hundreds of people just like you want to go on the side streets,which were never designed to handle the traffic,Bayen says."So,now,in addition to congesting the freeway,you've also congested the side streets and the intersections While it's clear that these apps can put stress on local side streets,we still don't know what effect they may have on highways,or for traffic systems as a whole.This is an open problem,said Bayen Hence,we need to be very cautious in our conclusions They re building on pioneering work by researchers like Hani Mahmassani into the role of real-time information in shaping traffic conditions.In 1991,Mahmassani challenged what he took to be"possible misconceptions that information will automatically lead to improvements in traffic conditions.He was not alone.That same year,other researchers noted that information can cause drivers to change their departure times in such a way as to exacerbate congestion Nonetheless,most of this early work showed that when the percentage of drivers with access to in formation was low there was a major benefit for better-informed drivers.So,in the early days of Waze and Google Maps and automated routing at UPS,many individuals did experience substantial benefits rom these applications.The roads,as a whole,were probably also flowing better.Bayen does,in fact,have a suggestion for improving these apps,but the companies might not like it.He thinks the apps should spread out drivers on different routes intentionally,which would require collaboration among the mapping apps.Given the cutthroat nature of competition in Silicon valley thats a tough sell but it might help bring down the price of anarchy
What may fundamentally lead to the anarchy in transportation?A.All drivers drive under the guidance of the mobile apps.
B.All drivers choose their fastest and most convenient ways
C.All drivers pick the freeways and arterial roads
D.All drivers drive along the back road and country roads
考题
What is the price of anarchy?Technically,in transportation engineering,the price of anarchy describes the difference between what happens when every driver selfishly picks the fastest route and what the socially optimal traffic outcome would be.In the pre-mobile-app days,drivers'selfishness was limited by their knowledge of the road network.In those conditions,both simulation and real-world experience showed that most people stuck to the freeways and arterial roads.Sure,there were always people who knew the crazy,back-road route but the bulk of people just stuck to the routes that transportation planners had designated as the preferred way to get from a to B But a new body of research at the University of California's Institute of Transportation Studies suggests that the reality is far more complicated.In some scenarios,traffic-beating apps might work for an individual,but make congestion worse overall.And autonomous vehicles,touted as an answer to traffic streets,could deepen the problem This problem has been vastly overlooked,"Alexandre Bayen,the director of UC Berkeley,'s Institute of Transportation Studies,told me.It is just the beginning of something that is gonna be much worse.The situation then gets much worse because hundreds of people just like you want to go on the side streets,which were never designed to handle the traffic,Bayen says."So,now,in addition to congesting the freeway,you've also congested the side streets and the intersections While it's clear that these apps can put stress on local side streets,we still don't know what effect they may have on highways,or for traffic systems as a whole.This is an open problem,said Bayen Hence,we need to be very cautious in our conclusions They re building on pioneering work by researchers like Hani Mahmassani into the role of real-time information in shaping traffic conditions.In 1991,Mahmassani challenged what he took to be"possible misconceptions that information will automatically lead to improvements in traffic conditions.He was not alone.That same year,other researchers noted that information can cause drivers to change their departure times in such a way as to exacerbate congestion Nonetheless,most of this early work showed that when the percentage of drivers with access to in formation was low there was a major benefit for better-informed drivers.So,in the early days of Waze and Google Maps and automated routing at UPS,many individuals did experience substantial benefits rom these applications.The roads,as a whole,were probably also flowing better.Bayen does,in fact,have a suggestion for improving these apps,but the companies might not like it.He thinks the apps should spread out drivers on different routes intentionally,which would require collaboration among the mapping apps.Given the cutthroat nature of competition in Silicon valley thats a tough sell but it might help bring down the price of anarchy
People can benefit from mapping apps whenA.there are more traffic apps available
B.only a minority of drivers use the apps
C.the roads are in better condition
D.the apps are more intelligent
考题
The traffic lights were red when the driver reached them．To the surprise of his passenger,the ear did not slow down．Unexpectedly the passenger was thrown forward in the vehicle as the driver put on his brakes at the last moment．The car stopped just in time.
"Sorry,I didn't notice the light．I thought it was green until I saw that it was the top light which was shining."
This strange story is quite true．About ten men in every hundred are color blind in some way;women are luckier--only about one in two hundred suffers from color blindness.
In some cases,a man may not be able to see deep red．He may think that red,orange and yellow are all the same as green.
People often like one color more than others．Blue is the color of the sky and sea．Green makes us think of fields and trees．Red is the color of blood and makes some people think of danger．Black is the color of night．In the dark we cannot see what is around us so we are sometimes afraid of the unknown and do not like black as a color.
Among the traffic lights,red light is placed__.A.at the bottom
B.in the middle
C.at the top
D.below the green light
考题
The traffic lights were red when the driver reached them．To the surprise of his passenger,the ear did not slow down．Unexpectedly the passenger was thrown forward in the vehicle as the driver put on his brakes at the last moment．The car stopped just in time.
"Sorry,I didn't notice the light．I thought it was green until I saw that it was the top light which was shining."
This strange story is quite true．About ten men in every hundred are color blind in some way;women are luckier--only about one in two hundred suffers from color blindness.
In some cases,a man may not be able to see deep red．He may think that red,orange and yellow are all the same as green.
People often like one color more than others．Blue is the color of the sky and sea．Green makes us think of fields and trees．Red is the color of blood and makes some people think of danger．Black is the color of night．In the dark we cannot see what is around us so we are sometimes afraid of the unknown and do not like black as a color.
According to the passage,which of the following statements is true?A.Black stands for unhappines
B.Black makes people think of nigh
C.Black makes people think of sorro
D.Black is the color of the mournin
考题
材料题
C
The trick in food photography is to show the food looking fresh，so many dishes have stand-ins，just as movie stars do．“When I get my lights and cameras set up，I remove the stand-in and put in the real thing，”explains Ray Webber，who photographs food for magazine advertisements．“Sometimes I have to brush the meat with its juices because it may have dried out a bit．A and when I‘m shooting（拍照）something like tomatoes，I always carry water to spray them with dew just before I shoot．”
Shooting food outdoors has special problems．“I‘m always worrying about flies or worms crawling up a glass，”Webber explains，“my worry is that someday a dog will come up from behind and run off with the food．”Once Webber was shooting a piece of cheese outdoors and needed something to make its color beautiful．Finally he found it：a weed with lovely blue flowers．When the shot appeared，several people were horrified-the weed was deadly nightshade！
（）Just before being photographed，some meats and vegetables are_______．
From the article we can conclude that deadly night-shade is probably a kind of plant that is_______．A.colorful
B.poisonous
C.ugly
D.Both A and
考题
import java.util.*； class KeyMaster { public int i； public KeyMaster（int i） { this.i = i； } public boolean equals（Object o） { return i == （（KeyMaster）o）.i； } public int hashCode（） { return i； } } public class MapIt { public static void main（String[] args） { Set set = new HashSet（）； KeyMaster k1 = new KeyMaster（1）； KeyMaster k2 = new KeyMaster（2）； set.add（k1）； set.add（k1）； set.add（k2）； set.add（k2）； System.out.print（set.size（） + “：”）； k2.i = 1； System.out.print（set.size（） + “：”）； set.remove（k1）； System.out.print（set.size（） + “：”）； set.remove（k2）； System.out.print（set.size（））； } } What is the result？（） A、 4：4：2：2B、 4：4：3：2C、 2：2：1：0D、 2：2：0：0E、 2：1：0：0F、 2：2：1：1G、 4：3：2：1
考题
You add an Online Responder to an Online Responder Array. You need to ensure that the new Online Responder resolves synchronization conflicts for all members of the Array. What should you do（）A、From Network Load Balancing Manager， set the priority ID of the new Online Responder to 1.B、From Network Load Balancing Manager， set the priority ID of the new Online Responder to 32.C、From the Online Responder Management Console， select the new Online Responder， and then select Set as ArrayD、From the Online Responder Management Console， select the new Online Responder， and then select Synchronize
考题
Which command is needed to change this policy to a tunnel policy for a policy-based VPN？（） [edit security policies from-zone trust to-zone untrust] user@host# show policy tunnel-traffic { match { source-address local-net； destination-address remote-net； application any； then { permit； } }A、set policy tunnel-traffic then tunnel remote-vpnB、set policy tunnel-traffic then permit tunnel remote-vpnC、set policy tunnel-traffic then tunnel ipsec-vpn remote-vpn permitD、set policy tunnel-traffic then permit tunnel ipsec-vpn remote-vpn
考题
使得吸盘吸取工件，“设置二元输出动作”正确的选项是（）。A、Set OUT[1]=TrueB、Set OUT[1]=FalseC、Set OUT[]=TrueD、Set OUT[]=False
考题
A new server was installed for the purpose of monitoring network traffic. The network has been configured in such a way that all traffic will be mirrored out the port this server is connected to. When reviewing the network traffic logs on the server only traffic destined to the server is listed in the logs. Which of the following is preventing the server from seeing all network traffic?（）A、NIC filtering is enabled.B、Port security is configured.C、NIC is not in promiscuous mode.D、NIC is in promiscuous mode.
考题
1. import java.util.*； 2. public class Example { 3. public static void main（String[] args） { 4. // insert code here 5. set.add（new integer（2））； 6. set.add（new integer（l））； 7. System.out.println（set）； 8. } 9. } Which code， inserted at line 4， guarantees that this program will output [1，2]？ （）A、 Set set = new TreeSet（）；B、 Set set = new HashSet（）；C、 Set set = new SortedSet（）；D、 List set = new SortedList（）；E、 Set set = new LinkedHashSet（）；
考题
You have specified the warning and critical threshold values of an application tablespace to be 60% and 70%， respectively. From the tablespace space usage metrics， you find that the actual space usage has reached the specified warning threshold value， but no alerts have been generated. What could be the reason for this？（）A、The EVENT parameter was not set.B、The SQL_TRACE parameter is set to FALSEC、The Enterprise Manager Grid Control is not used.D、The STATISTICS_LEVEL parameter is set to BASICE、The TIMED_STATISTICS parameter is set to FALSE
考题
All servers in your environment run Windows Server 2008 R2. All client computers ru n Windows 7. Each client computer has at least 2 5 GB free disk space. You virtualize applications by using Microsoft Application Virtualization (App - V). The App - V client cache is set to 4096 MB. User profiles are virtualized and stored on a server. You ne ed to increase the size of the file system cache on a client computer to at least 10 GB. What should you do?（）A、Use the AppVCacheSize tool to set the maximum cache size to 10240.B、Use the AppVCacheSize tool to set the minimum free disk space threshold to 1 0240.C、Set the HKLM / SOFTWARE / Microsoft / SoftGrid / 4.5 / Client /AppFS/ State registry key to 10240.D、Set the HKLM / SOFTWARE / Microsoft / SoftGrid / 4.5 / Client /AppFS/ FileSize registry key to 10240.
考题
You add an Online Responder to an Online Responder Array. You need to ensure that the new Online Responder resolves synchronization conflicts for all members of the Array. What should you do（）A、From Network Load Balancing Manager， set the priority ID of the new Online Responder to 1.B、From Network Load Balancing Manager， set the priority ID of the new Online Responder to 32.C、From the Online Responder Management Console， select the new Online Responder， and then select Set as Array Controller.D、From the Online Responder Management Console， select the new Online Responder， and then select Synchronize Members with Array Controller.
考题
You need to create a VPN connection. What should you do?（）A、From Windows Explorer， right-click Computer and then click Map network drive.B、From Windows Explorer， right-click Computer and then click Add a network location.C、From Network and Sharing Center， click Set up a new connection or network and then click Set up anew network.D、From Network and Sharing Center， click Set up a new connection or network and then click Connect to aworkplace.
考题
单选题Statistics issued in New Jersey suggested that ______.A
many drivers were not of legal ageB
young drivers were often bad driversC
the level of drinking increased in the 1960sD
the legal drinking age should be raised
考题
单选题1. import java.util.*； 2. public class Example { 3. public static void main（String[] args） { 4. // insert code here 5. set.add（new integer（2））； 6. set.add（new integer（l））； 7. System.out.println（set）； 8. } 9. } Which code， inserted at line 4， guarantees that this program will output [1，2]？ （）A
Set set = new TreeSet（）；B
Set set = new HashSet（）；C
Set set = new SortedSet（）；D
List set = new SortedList（）；E
Set set = new LinkedHashSet（）；
考题
单选题A new server was installed for the purpose of monitoring network traffic. The network has been configured in such a way that all traffic will be mirrored out the port this server is connected to. When reviewing the network traffic logs on the server only traffic destined to the server is listed in the logs. Which of the following is preventing the server from seeing all network traffic？ （）A
NIC filtering is enabled.B
Port security is configured.C
NIC is not in promiscuous mode.D
NIC is in promiscuous mode.
考题
问答题A set dominoes(多米诺) consists of rectangular (矩形的) tiles each carrying two numbers from 0 to 6 which represented by patterns of spots. Every possible pairing of numbers occurs just once including each number with itself. How many dominoes are there in a set?
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