题目内容
①7.3×1026g=_________kg
②100cm3=_________mL
③2.79/cm3=_________kg/m3
7.3×1023 100 2.7×103
完成下列单位换算:①7.3×1026g=____ __kg; ②100cm3=____ ___mL;
③2.7g/cm3=_________kg/m3