A-A+
According to the author the steel wires used
问题详情
According to the author, the steel wires used to make barbed wire are specially processed to ______.
A．make them more flexible
B．protect them against rust
C．straighten them
D．prevent contraction in cold weather请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：本题为细节辨认题。第三段第四句讲到“The steel wires used are galvanized — coated with zinc(锌)to make them rustproof”，也就是说，用来制铁丝网的钢丝经过镀锌后以防生锈。
