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单项选择 适中0.65 引用1 组卷38
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.benefitB.concludeC.deriveD.deviate
18-19高二下·甘肃金昌·阶段练习
知识点:benefitconcludederive动词词义辨析 答案解析 【答案】很抱歉,登录后才可免费查看答案和解析!