When people engage in activities that help others, their brain releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. It has been suggested that regular release of endorphins increases people’s longevity. And a statistic on adults who regularly engage in volunteer work helping others shows that they live longer, on average, than adults who do not volunteer. However, that statistic would be what we would expect even if volunteering does not boost longevity, because___________ Which of the following most logically completes the argument? A In the communities studied, women were much more likely to do regular volunteer work than men were, and women tend to live longer than men do B The number of young adults who do regular volunteer work is on the increase C The feelings of well-being induced by endorphins can, at least for a time, mask the symptoms of various conditions and diseases, provided the symptoms are mild D It is rare for a person to keep up a regular schedule of volunteer work throughout his or her life E Some people find that keeping a commitment to do regular volunteer work becomes a source of stress in their lives 错选了C，答案给的A。A说女士比男士更可能做志愿活动，女士比男士活得长。这不是支持原文了么？可以题目不是应该驳斥吗？

请问老师这道题怎么做，谢谢！

请问徐老师这道题怎么列式呀？我卡在different那里了

请徐老师用您的方法讲解一下这道题，谢谢！

请教一下May老师，圈起来的地方有点转不过弯，请解答，谢谢！

有点不知道怎么算

这道题B我选了C，B我算的不能确定s3一定在呀，请老师点拨！

这个错选了D，麻烦老师讲解一下关于年利率的知识点吧，有点糊。谢谢老师！

老师好，这道题正确答案是A。我通过这里的第一个and并列两个句子只留下了AD，但AD不太会排，麻烦老师讲一下，谢谢！

作文，感觉找不出其他错了，请老师看看，感谢！

我列了一下式子感觉第二年的销量和价格都能用第一年的多少倍来表示呀，难道是因为没有说是不是沙发的单价全都相等？