单选题:在一般砖混结构房屋中,墙体是主要的承重构件,其质量占建筑物总质量的(  )。

题目内容:
在一般砖混结构房屋中,墙体是主要的承重构件,其质量占建筑物总质量的(  )。 A.30%~40%
B.40%~45%
C.30%~45%
D.35%~40%

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