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题目内容
（陇东学院-大学英语(专升本)）
61. (单选题) The proposal ___we start doing the experiment two days earlier has been agreed upon by all.(本题1.0分)
A、 which
B、 what
C、 that
D、 of which
A、 which
B、 what
C、 that
D、 of which
参考答案
