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题型:语法填空(单句) 题类:常考题 难易度:普通

江苏省启东中学2019-2020学年高二上学期英语第一次质量检测试卷

The radiation amount of a mobile phone for half-hour periods per day is equal to, according to a recent medical study, (expose) to an X-ray for ten seconds.
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