问题
选择题
It was in the lab______ was taken charge of by Professor Zhang ____ they did the experiment．[ ]
A．where, that
B．which, where
C．that, where
D．which, that
答案
答案：D
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It was in the lab______ was taken charge of by Professor Zhang ____ they did the experiment．[ ]
A．where, that
B．which, where
C．that, where
D．which, that
答案：D
