题目内容：

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

优质解答

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 exper...