Is this research center( )is full of morden equipment you always mention
问题描述：
Is this research center( )is full of morden equipment you always mention
Awhere
B.that
C.the one that
D.the one where
答
C 分析：恢复语序后this research center is ( )is full of morden equipment you always mentio.句子中缺少先行词,和关系代词,所以the one做先行词,that 做主语.不能省略where 不能做主语淘汰D 如果选AB就是表语从...