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题目内容
（河南工业大学-土木工程-大学英语2）
(单选题) It was not until dark___ he found _____ he thought was the way to solve the problem(本题1.0分)
A、 that; what
B、 that; that
C、 when; what
D、 when; that
A、 that; what
B、 that; that
C、 when; what
D、 when; that
参考答案