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【单选题】
当受拉钢筋的直径( )mm及受压钢筋的直径( )mm时,不宜采用绑扎接头,宜采用焊接或机械连接接头。A.
d>28,d>32
B.
d>32,d>32
C.
d>28,d>28
D.
d>32,d>28
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