A.where is the trouble
B.where does the trouble
C.where the trouble lies
D.what is the trouble
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A.whether
B.if
C.unless
D.till
A.Ours
B.Ours ship
C.Our’s ship
D.Our’s
A.sparking being taking place
B.to spark taking place
C.sparking to be taken place
D.sparking taking place
A.is due to
B.dues to
C.is because
D.is for
A.send
B.sends
C.was sent
D.were sent
最新試題
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Which of the following items don’t belong to dock repair works?（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
If separating effect is not good, which measure should be taken （）
To proceed to the assistance of a ship in distress is（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）