A.where is the trouble
B.where does the trouble
C.where the trouble lies
D.what is the trouble
您可能感興趣的試卷
你可能感興趣的試題
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
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
Which of the following items don’t belong to dock repair works?()
The main purpose of port State control is not to()
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()
Using a file without a handle may result in ()
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.
If separating effect is not good, which measure should be taken ()