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题目内容双击单词支持查询和收藏哦～
Considering that space travel was science fiction only decades ago, we should be extremely reluctant to proclaim an idea forever technologically infeasible unless that idea _____ some hard physical constraint.
- A.violates
- B.contravenes
- C.overcomes
- D.transcends
- E.utilizes
- F.introduces
A,B显示答案
以上解析由 考满分老师提供。
