题目内容
Age hardening can increase steel ( ).
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When calculating ( ) of a beam, the geometric parameters of the net section are selected.
The bearing capacity of axially loaded compression member in the steel structure is generally determined by ()
For a cross-shaped section and I-section column, which one is prone to fail in the mode of torsional buckling? （）
The overall instability of the axially loaded compression member having a singly symmetric section belongs to ()
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