單項選擇題

The third officer’s duty is to（）when vessel is commanded under the pilot or captain.

A.operate the wheel and stand by
B.keep a lookout and operate steering gear
C.enter telegraph orders in the bell book
D.operate the telegraph and enter telegraph orders in the bell book

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單項選擇題

The tide（）.It’s 2 hours before low water, and（）your present position you will be aground at low water.

A.falls/in
B.has been falling/on
C.has fallen/at
D.is falling/in

單項選擇題

The type of extinguisher which should be used for an electricity fire is（）.

A.foam or soda acid
B.dry chemical or foam
C.carbon dioxide or dry chemical
D.carbon dioxide or foam