大学英语大学英语大学英语四级(CET4)1997年1月大学英语四级(CET-4)真题试卷
题目内容

By “... challenges explanation” (Line 2, Par

2024-07-09

A.1) the author means that ________.A.no explanation is necessary for such an obvious phenomenon

B.no explanation has been made up to now

C.it’s no easy job to provide an adequate explanation

D.it’s high time that an explanation was provided

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