The scientist’s many years’ careful observation ____ a surprising discovery. A. ran into B. began wi...
2023-02-03 15:15:55 118次 20102011陕西西安华清中学高一下学期第二次月考英语试题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The scientist’s many
years’ careful observation ____ a surprising discovery.
A. ran into B.
began with C. led
to D. came from
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