题文
It was in the lab _____ was taken charge by Professor Wang ______ they did the experiment.
| A．where, that | B．that, which | C．that, where | D．which, that |
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It was in the lab _____ was taken charge by Professor Wang ______ they did the experiment.
| A．where, that | B．that, which | C．that, where | D．which, that |
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