A.whether
B.if
C.unless
D.till
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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
A.any problem
B.some problem
C.any problems
D.some problems
最新試題
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Using a file without a handle may result in （）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
Diesel engine air start system check valves are opened by （）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.