Is this research center _____you saw the modern equipment last year?A．whichB．tha_刷题宝

题干

Is this research center _____you saw the modern equipment last year?

A．which

B．that

C．the one where

D．the one that

上一题下一题 0.64难度单项选择更新时间:2012-12-24 07:16:19

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