He tried every way to fred out the answer to that question.()A.key B.cause C.eff

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问题 He tried every way to fred out the answer to that question.()

选项 A.key
B.cause
C.effect
D.work

答案A

解析本题是对名词的考查。题干:他想尽各种方法寻找问题的答案。题干划线词answer 意为“答案”。四个选项:key意为“钥匙,答案”,cause意为“原因,事业”,effect意为“影响,效果”,Work意为“工作”,可知正确答案为A。
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