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The scientists are exploring the area in hopes of finding new stores of underground oil,which can serve as an outlet for the energy crisis.
A:styles
B:vaneties
C:supplies
D:shops
B:vaneties
C:supplies
D:shops
参考答案
参考解析
解析：本句意思：科学家们正在对此地区进行探测，他们希望能在这里发现新的地下油田，以作为缓解能源危机的一种方法。store在本句中的意思为“储存，贮存物”，与supply (贮备、供应）意思相近。style款式，风格；variety种类，多样性；shop商店。
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A Great Quake Coming?Everyone who lives in San Francisco knows that earthquakes are common in the Bay Area一and they can be devastating. In 1906,for example,a major quake destroyed about 28,000 buildings and killed hundreds,perhaps thousands of people.Residents now wonder when the next"Big One"will strike.It's bound to happen someday. At least seven active fault（断层）lines run through the San Francisco area. Faults are places where pieces of Earth ' s crust（地壳）slide past each other. When these pieces slip , the ground shakes.To prepare for that day,scientists are using new techniques to reanalyze the 1906 earthquake and pre-dict how bad the damage might be when the next one happens.One new finding about the 1906 earthquake is that the San Andreas fault split apart faster than scientists had assumed at the time. During small earthquakes,faults rupture（断裂）at about 2.7 kilometers per second. During bigger quakes,however,ruptures can happen at rates faster than 3.5 kilometers per second.At such high speeds,massive amounts of pressure build up,generating underground waves that can cause more damage than the quake itself. Lucky for San Francisco , these pressure pulses（脉冲）traveled away from the city during the 1906 event.As bad as the damage was,it could have been far worse.Looking ahead,scientists are trying to predict when the next major quake will occur. Records show that earthquakes were common before 1906.Since then,the area has been relatively quiet.Patterns in the data, however,suggest that the probability of a major earthquake striking the Bay Area before 2032 is at least 62 percent.New buildings in San Francisco are quite safe in case of future quakes.Still,more than 84 percent of thecity's buildings are old and weak.Analyses suggest that another massive earthquake would cause extensive damage.People who live there today tend to feel safe because San Francisco has remained pretty quiet for a while.According to the new research,however,it's not a matter of"if" the Big One will hit.It's just a mat- ter of when.Scientist will be able to predict the exact time of an earthquake soon.A:RightB:WrongC:Not mentioned
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共用题干
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It can be inferred from the passage that the Craighead Caverns presently serve as____.A.an underground testing site
B.an Indian meeting ground
C.a tourist attraction
D.a motor boat race course
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You decided to change the location of the flash recovery area. You executed the following command： ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’+disk1’ SCOPE=BOTH SID=’*’； Which statement is true？（）A、 The location can be changed only if the flash recovery area is empty.B、 After executing the command， all new flash recovery area files will be created in the new location.C、 The command will generate an error because you cannot change the flash recovery area while the database is open.D、 All the existing files in the flash recovery area will be moved to the new location and all new Flash Recovery Area files will be created in the new location.
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Which three tasks can be performed by using the performance Schema?（）A、Finding queries that are not using indexesB、Finding rows that are locked by InnoDBC、Finding client connection attributesD、Finding the part of a code in which a single query is spending timeE、Finding the size of each table
考题
单选题（）can be used to prevent hydraulic system overloaded or keep the pressure of oil outlet from pump constant.A
Overflow valveB
Reducing valveC
Balancing valveD
Reducing valve or balancing valve
考题
单选题Machinery operating features are designed to help conserve energy.Which of the following results will not contribute to energy conservation?（）A
Reduction of frictionB
Insulation of hot surfacesC
Lubrication of moving partsD
Elevation of cooler outlet temperatures
考题
单选题You decided to change the location of the flash recovery area. You executed the following command： Which statement is true？（）A
The location can be changed only if the flash recovery area is empty.B
After executing the command， all new flash recovery area files will be created in the new location.C
The command will generate an error because you cannot change the flash recovery area while the database is open.D
All the existing files in the flash recovery area will be moved to the new location， and all new Flash Recovery Area files will be created in the new location.
考题
单选题（）can cause oil flow from water outlet of a separator.A
Oil inlet valve opening too quicklyB
Oil temperature too highC
Diameter of gravity disc too smallD
Viscosity of oil too low
考题
单选题Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（）A
Water discharging from the water outlet of the lube oil purifierB
Fuel oil discharging from the water outlet of the lube oil purifierC
Lube oil discharging from the water outlet of the lube oil purifierD
A change in the lube oil viscosity
考题
单选题You decided to change the location of the flash recovery area. You executed the following command： ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’+disk1’ SCOPE=BOTH SID=’*’； Which statement is true？（）A
The location can be changed only if the flash recovery area is empty.B
After executing the command， all new flash recovery area files will be created in the new location.C
The command will generate an error because you cannot change the flash recovery area while the database is open.D
All the existing files in the flash recovery area will be moved to the new location and all new Flash Recovery Area files will be created in the new location.
考题
单选题Those against oil drilling ANWR argue that _____.A
it will drain the oil reserves in the Alaskan regionB
it can do little to solve U.S. energy problemC
it can cause serious damage to the environmentD
it will not have much commercial value
考题
单选题Which of the listed failures, occurring in an automated diesel generator system, should cause an audible alarm at the engine room control station?（）A
Low cooling water outlet temperatureB
High lube oil pressureC
Low lube oil temperatureD
Low starting air pressure
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