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During the lecture on financial advice, the house-wives _______.
A. were all eyes and ears B. were eyes and earsC. were all eyes and noses D. were eyes and noses

昨日习题答案:The only way John could solve the problem was by the method of ______. A. trial and error B. error and trialC. trial and mistake D. mistake and trial 标准答案是:A.本题分析:
Trial and error的意思为“反复试验,不断摸索”。
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