（）should be greased every month or two and it should be kept on a reel when not in use.
- A、Wire rope
- B、Hemp rope
- C、Nylon rope
- D、Wooden rope
正确答案:A
答案解析:有
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船舶水手考试
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（）should be greased every month or two and it should be kept on a reel when not in use.
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