选择题:26 . 槽钢檩条的每一端一般用下列哪一项连于预先焊在屋架上弦的短角钢上( )。A.一个普通螺栓B.

题目内容:
26 . 槽钢檩条的每一端一般用下列哪一项连于预先焊在屋架上弦的短角钢上( )。
A.一个普通螺栓
B.两个普通螺栓
C.安装焊缝
D.一个高强螺栓
参考答案:

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