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單項(xiàng)選擇題

It is very important for every sailor （）the characteristics of the ropes so that they can be for right jobs.

A.knowing
B.know
C.to know
D.knew

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This windlass （）now.
A. has repaired
B. is under repair
C. was repaired
D. had repaired
單項(xiàng)選擇題
The blocks and gooseneck of the jumbo need （）.
A. dismantling and inspecting
B. dismantled and inspected
C. to dismantle and inspect
D. dismantle and inspect

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