問題詳情

16.The knives referred to in line 21 are used to
(A)separate double-stranded wire
(B)prevent the reel from advancing too rapidly
(C)twist the wire
(D)cut the wire that becomes barbs

參考答案

答案:D
難度:簡單0.8
統計:A(0),B(0),C(1),D(4),E(0)

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