选择题:21 . 当偏心荷载作用在实轴时,格构柱的平面外稳定是通过()来保证的。A.计算柱平面外稳定;B.计

题目内容:
21 . 当偏心荷载作用在实轴时,格构柱的平面外稳定是通过()来保证的。
A.计算柱平面外稳定;
B.计算单肢稳定;
C.柱本身的构造要求;
D.选定足够大的单肢间距
参考答案:

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