题目内容

Peter has been a junior clerk for three years. Lately he ____ (look) for a better post but so far he hasn't found any.

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l do not understand how the arranged marriage could ____ work out in the more traditional societies.

在相同的回火温度下,合金钢比同样碳含量的碳素钢具有更高的强度。()

A. 对
B. 错

钢的晶粒因过热变粗时,会有变脆的倾向。()

A. 对
B. 错

珠光体、索氏体、屈氏体都是片层状的铁素体和渗碳体的混合物,所以它们的力学性能相同。()

A. 对
B. 错

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