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單項選擇題

（）(解開) the fore and aft ropes.

A.Thatch
B.Detach
C.Tie
D.Launch

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單項選擇題

Put on （）(艇底塞) and hand the fender and the buoy.

A. boat plug
B. boat nests
C. boat engine
D. boat deck

單項選擇題

We are going to carry out an/a （）(應(yīng)急演習(xí)).

A. fire drill
B. emergency drill
C. boat drill
D. abandon ship drill

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