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？

老师请问这个问题如何解答

请Tina老师讲解。这个题目问法第一次遇到，说下面哪个不是削弱。这种问法相当于在问哪个是支持或者无关吗？做题时觉得AB都是与原文逻辑无关选项。CDE都在解释一个城市与另一个相比，心脏相关手术的成本因素不同，感觉都与原文相关，但是也不是削弱。这个题目感觉摸不着方向

请王文静老师解答。我理的逻辑链：因为热的地方容易缺水，且全球变暖让温度更高，所以肾结石病会增加。我选的E，说天气热的地方结石病多，冷的地方少。A选项给我感觉是因果倒置，病多的地方，天气热，反了。请老师讲解这个题的正确解题思路，并且指出我的错误在哪，如何避免

C选项的It为什么是指代不清呀

金老师好，当时看B觉得to conquer 的发起者是登山者，不应是hazards，但是根据including觉得是hazards包括这几个事，E从语法上成了amateur including了，这个Ving找动作发起者的规则这里不适用吗？

请老师讲一下思路

请老师讲下第七题思路。我的理解是条件1可以判断，想要成立则xy的个位数应该是5或者0，这样次方之后依然是5或者0，即xy的个位应该相等，所以答案是No。老师，我是错误理解题意了吗？

徐老师讲下第六题，是用捆绑法吗？做这种题特别没有思路，怎么办？

求问解题思路

请问这两题的解题思路