题目:
Not everyone likes everyone else, _____?
A.does one
B.does everyone
C.do they
D.don’t they
答案:
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答案:C题目分析:设在该温度和压强下,气体的气体摩尔体积为Vm,a容器内气体的质量为:m(CO2)="0.1L×44g/mol÷Vm" mL/mol="4.4/" Vm g;b容器内气体的质量为:m(O2)="0.2L×32g/mol÷Vm" mL/mol="6.4/"...