问题描述：
这道题应该选择什么?You will easily know ________ video recorders (录相机) are the same.
A.what those B.that of those C.that all of D.which of those
请说明理由,
A.what those B.that of those C.that all of D.which of those
请说明理由,
问题解答：
我来补答展开全文阅读