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题目内容双击单词支持查询和收藏哦～
In many branches of science, our knowledge and technology have advanced so rapidly that new studies carried out with improved instruments and techniques may well ___________ research done just twenty years earlier.
- A.confirm
- B.supplant
- C.elaborate
- D.supersede
- E.question
- F.validate
B,D显示答案
以上解析由 考满分老师提供。
