2020宁夏军队职称英语理工类C级考试高频考点例题解析(329)

　　2020宁夏军队职称英语理工类C级考试高频考点例题解析(329)
 

　　_____ has already been pointed out, grammar is not a set of dead rules.

　　A.It

　　B.What

　　C.As

　　D.Which

　　解析：无。

　　本题选C。
 

　　There are three libraries in our school, ______ were built five years ago.

　　A.all of them

　　B.either of them

　　C.all of which

　　D.both of that

　　解析：无。

　　本题选C。