单项选择题
The term “moderate speed” was previously interpreted as meaning a speed which would enable a vessel （）within half the range of visibility.
A.stopping
B.being stopped
C.to stop
D.to be stopped
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相关考题
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单项选择题
The two-stroke cycle begins with the piston coming up from the BDC, with the scavenging ports in the sides of the cylinders being （）.
A.open
B.uncover
C.covered
D.closed -
单项选择题
Hearing a strong noise, （） at once.
A.the engine stopped
B.the engine was stopped
C.he stopped the engine
D.he had stopped the engine -
单项选择题
（） that everything in the engine crankcase is correct, start up the crankcase lubricating oil pump.
A.To satisfy
B.To be satisfied
C.After satisfying
D.After being satisfied
