普通砖、空心砖含水率以( )为宜。A.4%~8% B.5%~10% C.1

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问题 普通砖、空心砖含水率以(  )为宜。A.4%~8%B.5%~10%C.10%~15%D.15%~20%

选项 A.4%~8%
B.5%~10%
C.10%~15%
D.15%~20%

答案 C

解析
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