题目内容

建筑石油沥青主要特点是塑性好、粘度低,而道路石油沥青的特点是粘度大、耐热性好、弹性大。

A. 对
B. 错

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当环境温度升高时,钢材的强度()。

A. 下降
B. 不变
C. 上升
D. 可能下降,可能上升

钢筋和砼之间的粘结力主要由()构成。

A. 摩阻力
B. 胶着力
C. 咬合力
D. 粘结力

Property is defined _______ the rights a person has to the use and disposition of an object.

A. regarding as
B. concerning
C. relating
D. looking

The old man was seriously ill and he was in _____ need of treatment.

A. main
B. popular
C. urgent
D. upset

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