问题
单项选择题
A whipping on a fiber line（）.
A.keeps the ends from fraying
B.strengthens it
C.protects your hands
D.becomes part of a splice
答案
参考答案：A
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A whipping on a fiber line（）.
A.keeps the ends from fraying
B.strengthens it
C.protects your hands
D.becomes part of a splice
参考答案：A