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外语
Only after they had performed hundreds of experiments did they succeed in (solve) ______the problem.
Only after they had performed hundreds of experiments did they succeed in (solve) ______the problem.
admin
2011-07-15
70
问题
Only after they had performed hundreds of experiments did they succeed in (solve) ______the problem.
选项
答案
solving
解析
本题考查动名词的用法。英语中介词后需接动名词,动名词由动词加-ing构成,起名词的作用。本题中,solve的动名词形式solving作介词in的介词宾语,故填solving。
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本试题收录于:
大学英语三级A级题库大学英语三级分类
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大学英语三级A级
大学英语三级
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