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It was in this old wooden house____the Curies made experiment after experiment.是用that or which.

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It was in this old wooden house____the Curies made experiment after experiment.是用that or which.
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答案和解析
用that 这是个强调句型 如何判断是否强调句:把It was 去掉,连词不选,看看in this old wooden house 能否放回原句,如果能,那么就是强调句,如果不能则不是.显然这句能放回去:Thr Curies made experiment after experiment in this old wooden house.居里夫妇在这个木屋里做了一个又一个实验.