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题目内容
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.
- Aviolates
- Bcontravenes
- Covercomes
- Dtranscends
- Eutilizes
- Fintroduces
A,B显示答案
以上解析由 考满分老师提供。