When paying out nylon line from around the bitts().
A. stand clear of the bitts and use two or more round turns under your figure eights
B. you can surge the line even with a single turn
C. no extra turns are necessary since nylon has a high coefficient of friction
D. stand in the bight of the line
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省局(公司)提出基层服务站建设的三个基本原则是什么?