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题目内容
Only novel ideas should be awarded patents; if a concept is _____________to practitioners in a given field or has previously been published in almost any fashion, that fact should invalidate the application.
- Alucrative
- Bmanifest
- Cpresented
- Ddescribed
- Eobvious
- Frewarding
B,E显示答案
以上解析由 考满分老师提供。