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單項(xiàng)選擇題

The officer in charge of the engineering watch shall ensure that all machinery involved with the maneuvering of the ship can immediately be placed in the （） of operation when notified that the ship is in congested waters.

A.manual mode
B.automatic mode
C.remote mode
D.follow-up mode

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單項(xiàng)選擇題

Texture measurement by instruments will give a value in degree. CelciusThis scale of measurement is normally used for all readings and temperature values （） dealing with theoretical calculations involving the gas laws.

A.in addition to
B.in addition that
C.except that
D.except when

單項(xiàng)選擇題

（） thrust and resistance equal each other, the ship always travels at a constant speed.

A.As long as
B.As far as
C.As well as
D.Unless