网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
What is the disadvantage for air transportation? （）
- A、Quick but not safe
- B、Less frequency
- C、It can’t lift heavy goods
- D、The highest cost in all transport modes
参考答案
更多 “What is the disadvantage for air transportation? （）A、Quick but not safeB、Less frequencyC、It can’t lift heavy goodsD、The highest cost in all transport modes” 相关考题
考题
What a () smell! Open the window and air out the room.
A、disgustingB、pleasingC、wonderfulD、disturbed
考题
What kind of planet will our children inherit? Will they have room to () air to breathe and food to eat?
A、wonderB、stayC、roamD、play
考题
What a ________ smell! Open the window and air the room.
A、disgustingB、pleasingC、powerfulD、disturbing
考题
What is this passage mainly about?A．Disadvantage of face recognition technology.B．Purposes of face recognition technology.C．Controversial face recognition technology.D．Effect of face recognition technology.
考题
The text is mainly about _____.［A］ the advantage of having cosmetic surgery［B］ what kind of people should have cosmetic surgery［C］ the reason why cosmetic surgery is so popular［D］ the disadvantage of having cosmetic surgery
考题
According to the passage，what is one disadvantage of skyscrapers that have mirrored walls?A. The exterior surrounding air is heated。B. The windows must be cleaned daily.C. Construction time is increased.D. Extra air-conditioning equipment is needed.
考题
What does CAAC stand for?A. Civil Air&Aviation Corp.B. China Air&Aviation CivilC. China Air Administration Corp.D. Civil Aviation Administration of China
考题
If the exhaust gas temperature of the incinerator is too high, or if sparks are developed, What should you do?
A.Close the inlet and outletvalves for diesel oilB.Open the air nozzles in the secondary combustion chamber until it stopsC.Open the air nozzles in the primary combustion chamber until it stopsD.Close inlet valve for pressurized air
考题
What is the function of an air receiver in the compressed air system on a ship?A.Condenses moistureB.Provides overpressure protectionC.Purifies the airD.Acts as an accumulator
考题
What is the most probable cause of reduced capacity in a reciprocating air compressor ________．A.Carbon on cylinder headsB.Faulty unloaderC.Leaking air valvesD.Plugged air cooler
考题
According to the passage, what is one disadvantage of skyscrapers that have mirroredwalls?__________A.The exterior surrounding air is heated
B.The building materials are very expensive
C.Construction time is increased
D.Extra air-conditioning equipment is needed
考题
（）is the disadvantage for air transportation?A、Quick but not safeB、Less frequencyC、It can’t lift heavy goodsD、the highest cost in all transport modes
考题
What kind of products do the air carriers deliver? （）A、The high valueB、Low density or weightC、A and BD、To add cost
考题
单选题What occurs when rising air cools the dew point?（）A
advection fog formsB
humidity decreaseC
wind increaseD
Cloud form
考题
单选题（）is the disadvantage for air transportation?A
Quick but not safeB
Less frequencyC
It can’t lift heavy goodsD
the highest cost in all transport modes
考题
单选题What is the function of an air receiver in the compressed air system on a ship? （）A
Condenses moistureB
Provides overpressure protectionC
Purifies the airD
Acts as an accumulator
考题
单选题What is the best way of stopping an over-speeding diesel engine?（）A
Disconnect the battery cables from the starting motorB
Drain the hydraulic fluid from the governor sumpC
Block the flow of cooling air to the radiatorD
Secure the fuel supply and block the air intake
考题
单选题When an air started, four-stroke/cycle diesel engine is being cranked, the starting air is admitted to each cylinder during what would normally be the（）A
intake strokeB
compression strokeC
power strokeD
exhaust stroke
考题
单选题After putting on a self-contained breathing apparatus, you open the air supply and hear a continuous ringing of a bell.What does this mean?（）.A
The unit is working properlyB
The face mask is not sealed properlyC
The air bottle needs to be refilledD
The air supply hose has a leak
考题
单选题What is NOT a function of the air supply of a covered lifeboat?（）A
Provides air for engine combustionB
Pressurizes water spray systemC
Provides air for passenger respirationD
Prevents smoke and other noxious fumes from entering craft
考题
单选题What is the passage mainly about?A
How to fight air pollution in big cities.B
How to avoid air pollution in big cities.C
How to breathe fresh air in big cities.D
How serious air pollution is in big cities.
考题
单选题（） in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine.A
BecauseB
Owing toC
ForD
No matter
考题
单选题On what do you depend having the air cooler of main engine chemically washed?（）A
increased air pressure differenced before and aft air coolerB
reduced exhaust temperature in all cylindersC
reduced temperature difference between water inlet and outletD
both A and C
考题
单选题What is the disadvantage for air transportation? （）A
Quick but not safeB
Less frequencyC
It can’t lift heavy goodsD
The highest cost in all transport modes
热门标签
最新试卷