this kind of cimputer is very expensive computer of this kind are very expensive

问题描述:

this kind of cimputer is very expensive computer of this kind are very expensive
请问,为什么第一个用is,第二个用are?
this kind of computer is very expensive 和
computer of this kind are very expensive

第二句主语应该是:
computers of this kind ,中心词是computers名词复数,谓语用复数
第一句主语是单数,中心词是kind,谓语用单数
不懂追问*^__^*