题目内容

桁架就位的关键点是使桁架的端头两个方向的轴线与柱顶轴线重合后，及时进行临时固定。

A. 对
B. 错

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起重量是指起重机运行起吊的最大重量和取物装置（吊索、铁扁担或容器）自重之和。

A. 对
B. 错

预制屋架在现场的堆放方式有斜向和纵向两种堆放形式，一般以斜向堆放为宜。

A. 对
B. 错

New China has been promoting closer ________ with other countries for world peace since its founding in 1949.

A. cooperating
B. corporate
C. cooperation
D. company

China didn't ________ its 2012 foreign trade goal due to the debt crisis in Europe.

A. attain
B. decline
C. urge
D. launch