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题目内容
（兰州大学大学英语（3））
1.
(4分)According to the national survey by the CDCOSH, we can know that less than 3 million kids between the ages of 12 and 17 are lighting up.
(4分)According to the national survey by the CDCOSH, we can know that less than 3 million kids between the ages of 12 and 17 are lighting up.
参考答案