单项选择题
A.高于 B.低于 C.近似等同于 D.a或b
A.98.5% B.62% C.38% D.1.5%
A.2.66kg/m3 B.2660kg/cm3 C.2660g/cm3 D.2.66g/cm3
A.62% B.98.5% C.1.5% D.62%
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