問題詳情

13.What is the benefit of using two-stranded barbed wire?
(A)Improved rust-resistance
(B)Increased strength
(C)More rapid attachment of barbs
(D)Easier installation.

參考答案

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

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