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问题
填空题
屋架弦杆在平面外的计算长度,应取()
答案
参考答案:侧向支撑点间的距离
选择题
The schools themselves admit that not all children will be successful in the jobs ______they are being trained.
A. in that
B. for that
C. in which
D. for which
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单项选择题
最大井斜角大于或等于86°,并保持这种井斜角钻完一定长度段,这种井称为()。
A.普通定向井
B.大斜度井
C.水平井
D.大位移井
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