It was in the wooden house a businessman built by collecting funds the great scientist carried out the experiment that made a difference.
A. which; that
B. where; that
C. that; where
D. that; which
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(答案→)A. which; that
B. where; that
C. that; where
D. that; which
解析：本题考查定语从句和强调句型。被强调部分为地点状语in the wooden house, 其后面又带了个定语从句, 从句中的built缺宾语, 用that 或which引导; 第二空才是强调句型的that分句。