You will easily know _____ of those video recorders are the same A that B which

问题描述:

You will easily know _____ of those video recorders are the same A that B which

B\正确,因为that引导宾语从句时不作任何成分,甚至可以省略.而此处的介词OF需要宾语,which正好满足了这一点.另外木有what of 这个搭配哦.