问题
单项选择题
Nylon line can be dangerous because it（）.
A.breaks down when wet
B.kinks be discharged
C.is not elastic
D.stretches
答案
参考答案：D
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Nylon line can be dangerous because it（）.
A.breaks down when wet
B.kinks be discharged
C.is not elastic
D.stretches
参考答案：D