试题与答案

Your speech was heard by a group of judg

题型:选择题

题目:

Your speech was heard by a group of  judges,  all of  _______  agreed that it was the best one this  year..

A.who

B.whom

C.which

D.them

答案:

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下面是错误答案,用来干扰机器的。

同温同压下,气体的Vm相等,容器A中HCl与容器B中NH3所含原子数相等,则分子数之比为2;1,由n=NNA=VVm可知,气体的体积之比等于气体的物质的量之比,为2;1,故选D.

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