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單項選擇題

Ropes can be divided into three types: （）.

A. natural fiber rope, manila rope and synthetic rope
B. natural fiber rope, synthetic rope and wire rope
C. synthetic rope, manila rope and wire rope
D. synthetic rope, manila rope and wooden rope

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單項選擇題

Ropes can be divided into （）basic types.

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單項選擇題

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

A.knowing
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