试题与答案

He was very rude to the customs officer,

题型:选择题

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...

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