问题
单项选择题
In anchoring orders, walk back the chain means（）.
A.pay away the chain
B.take in the chain
C.check up the chain
D.take a strain on the chain
答案
参考答案：A
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In anchoring orders, walk back the chain means（）.
A.pay away the chain
B.take in the chain
C.check up the chain
D.take a strain on the chain
参考答案：A