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單項(xiàng)選擇題

The second officer will take（）the watch soon.

A.on
B.under
C.off
D.over

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單項(xiàng)選擇題

The ship（）about 1/2 miles southward of the lighthouse.

A.moors
B.moor
C.is moored
D.mooring

單項(xiàng)選擇題

The ship has a diesel engine（）a supercharger.

A.with
B.of
C.on
D.over

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