Is this research center you saw the modern equipment last year?
A. which
B. that
C. the one where
D. the one that
网友回答
A. which
B. that
(答案→)C. the one where
D. the one that
解析： 考查定语从句。本题的主语是this research center,原句缺少表语，后面的定语从句也缺少先行词，故the one在句中既做表语也做了先行词，后面的句子很完整，所以使用关系副词，先行词指地点，故使用where,故C正确。