A-A+
The best solution to the problem can only be f
问题详情
The best solution to the problem can only be found by a process of trail and ______.
A．mistake
B．error
C．success
D．experiment
参考答案
正确答案：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。mistake意为“错误”；success意为“成功”；experiment意为“实验”，这三项在此句中均不合适。
