The new method he suggested sounded good in,but is not practical in use.A. opinionB. polic

发布时间：2020-08-15 00:33:29

The new method he suggested sounded good in    ,but is not practical in use.
A. opinion
B. policy
C. theory
D. principle

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A. opinion
B. policy
(答案→)C. theory
D. principle
解析：theory   “理论”   A.“意见”；B.“政策”；D.“原则”。
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