问题详情

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。请帮忙给出正确答案和分析，谢谢！