单选题（）should be greased every month or two and it should be kept on a reel when not in use.AWire ropeBHemp ropeCNylon ropeDWooden rope
单选题
（）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
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