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【单选题】
已知：w 表示质量百分比浓度，ρ 表示溶液密度，M 表示溶质的摩尔质量，V 表示溶液的 体积，则该溶液的物质的量浓度 c 为( )A.
wV/M
B.
wp/MV
C.
wpV/M
D.
wM/V
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A.
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B.
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C.
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D.
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A.
排痰化痰
B.
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C.
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D.
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E.
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A.
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B.
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C.
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D.
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