A.the second engineer had got into the engine room
B.the second engineer got into the engine room
C.has the second engineer got into the engine room
D.did the second engineer get into the engine room
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A.Having adjusted
B.Being adjusted
C.To adjust
D.Adjusted
A.coming up from the BDC
B.coming up from the TDC
C.coming down from the BDC
D.coming down from the TDC
A.open
B.close
C.drain
D.vent
A.discovered
B.had discovered
C.invented
D.had invented
A.because
B.thanks to
C.dues to
D.owing to
最新試題
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
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