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？

请唐瑭老师答疑：这道题最后一句划定的范围是hunt和A数量的关系，BCD能够自己排除，A项说人口增加，我觉得人口增加不一定hunt就会增加再影响人口，所以无关，但E项，A在人少的场合被目击的次数多，不就代表A多了是因为那里人少，hunt肯定是人来完成的，人少就少有hunt。

请唐瑭老师答疑： 我的思路是：原文最后一句划定的范围是对于延误来说，天气等不可控因素是一部分，但可控因素是有明显下降的，大致就是延误的因素。可以排除BCE选项，A选项低估airline error的占比，而D项，不可控因素在上升，为什么A错误而D正确呢？谢谢老师！

请唐瑭老师答疑：请唐老师用他的思路讲一下这道题。谢谢老师！

请唐瑭老师答疑：还不太能够理解为什么选D选项，能讲下这道题嘛，想知道是不是从一开始思路就错了。谢谢老师！

请唐瑭老师答疑：这个题可以不用看原文，直接在题干中总结范围：suncrop追求less profit，C项中cattle ranching高税的profits会产生比其他工业的profits更高，而E项中，开展RT的成本要比开展CR的成本高，对profit来说中间还有一步推理

请徐小梅老师答疑：

1.问题1 一个数的余数问题额，怎么看他除以248395的余数他的余数是与他各个位数上的和加起来除以这几个数的余数相等么？ 2.在质因数分解中，为什么每个分解出的质数的幂+1相乘等于他质数的个数，能解释一下原理吗？

没有找到这个细节题在哪里，好像没有怎么理解文章的意思。文章是在讲biologist和historian的explanation的方式以及biologist是以historian explaination为基础，然后发现了一些漏洞吗？ 希望张老师回答一下🥺

请教一下小梅老师，在用间接法时 所有情况-相邻捆绑=两个I没有挨在一起的情况 我的笔记上写的所有情况的表达式是C25A33 但现在自己看不懂了，希望老师讲下为什么

这题E选项是对的，但consumers主语后面谓语动词为什么是一般现在时，整个句子不是过去式么？