摘要：29．The reader who has spent serious effort on a problem may from the effort even if he does not succeed in solving the problem. A．benefit B．conclude C．derive D．deviate
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The reader who has spent serious effort on a problem may ________ from the effort even if he doesn't succeed in solving the problem．
- A.come
- B.benefit
- C.conclude
- D.judge
The reader who has spent serious effort on a problem may________ from the effort even if he does not succeed in solving the problem．
- A.benefit
- B.conclude
- C.derive
- D.deviate