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Because of ______，air ducts used aboard ships are often very small and have sharp curves and bends．
A.high level
B.overflow spaces
C.cargo tank
D.space constraints
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更多 “ Because of ______，air ducts used aboard ships are often very small and have sharp curves and bends．A.high levelB.overflow spacesC.cargo tankD.space constraints ” 相关考题
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Wild dogs are dangerous predators because they ______.A. are very fierceB. hunt in large packsC. are very intelligentD. have unusually large litters
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Which of the following cable types is rated to be run through air ducts?()
A.STPB.PlenumC.PVCD.UTP
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We ______ very close，but things have changed recently. A. used to be B. are used to being C. are used to be D. were used to being
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Aboard a survival craft, ether can be used to ______.A.start the engine in cold weatherB.aid in helping personnel breatheC.prime the sprinkler systemD.prime the air supply
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If there’s a fire aboard your vessel, you should FIRST ______.A.notify the competent authoritiesB.sound the alarmC.have passengers put on life preserversD.cut off air supply to the fire
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She doesn't want to work right now because she thinks that if she __________a job she probably wouldn't be able to visit her friends very often.
A．has to get
B．were to get
C．had got
D．could have got
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共用题干
American RoadsThe United States is well-known for its network of major highways designed to help a driver get from one place to another in the shortest possible time._______(51) these wide modem roads are generally_______(52)and well maintained,with_______(53)sharp curves and straight sections,a direct route is not always the most_______(54)one.Large highways often pass _______(55)scenic areas and interesting small towns.Furthermore,these highways generally _______(56)large urban centers,which means that they become crowded with_______(57) traffic during rush hours,_______(58)the"fast,direct"route becomes a very slow route.However,there is almost always another route to take_______(59)you are not in a hurry.Not far from the_______(60)new"superhighways",there are often older,_______(61)heavily traveled roads which go through the countryside._______(62)of these are good two-lane roads; others are uneven roads curving through the country.These secondary routes may go up steep slopes,along high_______(63),or down frightening hillside to towns_______(64)in deep valleys.Through these less direct routes,longer and slower,they generally go to places_______(65)the air is clean and scenery is beautiful,and the driver may have a chance to get a fresh, clean view of the world._________(61)A:and B:lessC:more D:or
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Because of the （）, we have to keep a sharp lookout.A、poor visibilityB、good visibilityC、good weatherD、dry weather
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Which of the following cable types is rated to be run through air ducts?（）A、STPB、PlenumC、PVCD、UTP
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单选题The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.A
principleB
principalC
causeD
case
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单选题When crossing a front,isobars tend to（）.A
change from smooth curves within the air mass to sharp bends at the frontB
change from sharp bends within the air mass to smooth curves at the frontC
pass smoothly across the front with no changeD
become closer together at the front and pass through in straight lines
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单选题Aboard a survival craft,ether can be used to（）.A
start the engine in cold weatherB
aid in helping personnel breatheC
prime the sprinkler systemD
prime the air supply
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单选题We may have known someone for ten years and still know very little about him because _____.A
we don’t accept the idea that we might never fully know another personB
we often get information in a casual and inexact wayC
we pay more attention to other people’s motivations and emotionsD
we often have face-to-face conversation with him
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单选题Restrictions occurring in the small orifices of pneumatic control system components can be used by （）A
moisture in the compressed air supplyB
excessive dryness in the compressed air supplyC
pressure surging in the compressed air receiverD
insufficient lubrication of the system components
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单选题A sling is a device used in（）.A
hoisting cargo aboard a vesselB
hoisting personnel aboard a vesselC
securing a small boat to a large vesselD
hoisting the anchor
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单选题Dogs have a very good _____ of smell and are often used to search for survivors in an earthquake.A
senseB
viewC
meansD
idea
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单选题Nylon rope is often used in the makeup of a towline because it（）.A
floatsB
stretchesC
handles easilyD
resists rot
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单选题Investors are attracted to internet companies because they ______A
sell their shares at a lowB
have a large number of sharesC
are often a very safe investmentD
offer potential for rapid growth
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单选题On commonly used ships,if two A√Cgenerators are operated in parallel, the load is distributed evenly by （）.A
varying the D-Cexciter voltageB
varying the reluctance of the air gapC
regulating the speed of prime moverD
shorting out part of the armature windings
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单选题This machine （）out of order very often, but now it works well.A
is used to beB
was used to beC
used to beD
was used to
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多选题A Company.com developer has created a web application that includes a servlet for each use case in the application. These servlets have become rather difficult to maintain because the request processing methods have become very large. There is also common processing code in many servlets because these use cases are very similar. Which two design patterns can be used together to refactor and simplify this web application？ （）AProxyBView HelperCFront ControllerDSession FaçadeEBusiness DelegateFModel-View-Controller
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单选题Personnel who are moving or handling material aboard ship should NOT follow which of the listed practices?（）A
signaling that all personnel are clear before lifting or lowering materialB
Examining material for sharp edges or protruding points before handlingC
Closing, tagging, or securing valves that permit entrance of steam, water, or air into a fitting or other equipmentD
Throwing materials from high places to the deck
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单选题More attention should be given to the bicycle as a means of transport because it is _____.A
a very efficient and simple deviceB
much cheaper than a carC
widely used in Amsterdam and CambridgeD
still used by rich people
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