[单选题]重混凝土：表观密度在( )之间，用天然砂、石作骨料制成，主要用于各种承重结构，是我们常称的普通混凝土。
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2023-11-01 15:21:31|
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[单选题]重混凝土：表观密度在( )之间，用天然砂、石作骨料制成，主要用于各种承重结构，是我们常称的普通混凝土。
A.1900~2500 kg/m3
B.500 kg/m3
C.＞2500kg/m3
D.500~1900 kg/m3
A.1900~2500 kg/m3
B.500 kg/m3
C.＞2500kg/m3
D.500~1900 kg/m3
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