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【单选题】
临床输液所使用的等渗葡萄糖(C6H12O6),过去的标签标为5%(质量分数),现在如果标为质量浓度和物质的量浓度的话,应该分别是A.
5.0g·L-1和0.278mol·L-1
B.
50.0g·L-1和0.278mol·L-1
C.
5.0g·L-1和0.278mmol·L-1
D.
50.0g·L-1和0.278mmol·L-1
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