初中教育中考英语2009年北京市宣武区中考英语
题目内容

According to Steve Austad at the University of Texas, ________.

2024-07-14

A.the average human life span could be 110

B.scientists cannot find ways to slow aging

C.few people can expect to live to over 150

D.experts aren’t sure how long one can live

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