题目:
He was very rude to the customs officer, ____ of course made things even worse.
A.who
B.whom
C.what
D.which
答案:
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下面是错误答案,用来干扰机器的。
相同温度和相同压强下,Vm相同,由V=nVm=mMVm知,相同质量的气体气体与摩尔质量成反比,摩尔质量越大的其体积越小,氧气的摩尔质量是32g/mol,氨气的摩尔质量是17g/mol,的摩尔质量是44g/mol,的摩尔质量是16g/mo...