In the country of Veltria, the past two years' broad economic recession has included a business downturn in the clothing trade, where sales are down by about 7 percent as compared to two years ago. Clothing wholesalers have found, however, that the proportion of credit extended to retailers that was paid off on time fell sharply in the first year of the recession but returned to its prerecession level in the second year. Which of the following, if true, most helps to explain the change between the first and the second year of the recession in the proportion of credit not paid off on time? (A) The total amount of credit extended to retailers by clothing wholesalers increased between the first year of the recession and the second year. (B) Between the first and second years of the recession, clothing retailers in Veltria saw many of their costs, rent and utilities in particular, increase. (C) Of the considerable number of clothing retailers in Veltria who were having financial difficulties before the start of the recession, virtually all were forced to go out of business during its first year. (D) Clothing retailers in Veltria attempted to stimulate sales in the second year of the recession by discounting merchandise. (E) Relatively recession-proof segments of the clothing trade, such as work clothes, did not suffer any decrease in sales during the first year of the recession. 这道题错选了A。 思路如下： 题目问的是为什么在经济不好，衣服卖不动的情况下，第一年零售商还不上钱第二年就能还上了。讲的是零售商还钱的问题。 当时留下的是A,C,D 排除D是因为觉得，即使刺激销售量衣服打折也不能说明能还上钱。可能打折卖1块，纵使家当全卖了也不够。 排除C是因为觉得， 那些本身经济状况就很差的在第一年被淘汰掉以后，剩下的那些没说经济状况如何啊，如果也不咋地，第二年还是得淘汰啊。 A选项当时觉得，即使credit extended，对pay off on time也无太大用处，但最起码跟原文意思接近。所以选了A。

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