人造石调和的水粉比为 A.25~35ml:100g B.35~45ml:10

恬恬2020-05-20  4

问题 人造石调和的水粉比为A.25~35ml:100gB.35~45ml:100gC.45~55ml:100gD.55~65ml:100gE.65~75ml:100g

选项

答案A

解析
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