高中英语语法( )he made another wonderful dicovery,_________ of gre
高中英语语法 ( )he made another wonderful dicovery,_________ of great importance to science. A.which i think is b.which i think it is c.which i think d.i think which is 要有原因
A be of importance是一个词组,故而可以排除C. i think 是一个插入语,在做题目的时候可以将他删除不去看他,这对题目本身没有任何影响的(以后做题目之中I think之类的话可以直接删去,这样做题目就方便很多了.)故排除d which i think it is 在语法上就错误了,这句话中不能加it