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  3. The best solution to the problem can only be found by a process of trail and

The best solution to the problem can only be found by a process of trail and

admin2011-06-29  33
问题 The best solution to the problem can only be found by a process of trail and
选项 A、mistake
B、error
C、success
D、experiment
答案B
解析 trail and error是固定的用法，意为“反复试验，从失败中找出解决的办法”，又如：learn by trail and error。
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