From the passage, we can see______.

A.scientists have also found out how to increase our life span by changing the gene. B.the results of a study show that monkey can live longer through taking less fat. C.extending life is by no means a 100% good thing. D.the experiment on the worm is most successful. 此题为多项选择题。

时间:2023-12-20 09:13:49

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