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Q4. The Census Bureau reported that the median family income, after adjustment for inflation, increased 1.6% in 1983. Poverty normally declines when family income goes up, but the national poverty rate remained at its highest level in 18 years in 1983. The Census Bureau offered 2 possible explanations: the lingering effects of the deep and lengthy 1981-1982 recession, and increases in the number of people living in families headed by women and in the number of adults not living with any relatives. Both groups are likely to be poorer than the population as a whole. Which of the following conclusions can be properly drawn from this report? B). The national poverty rate will increase when there are lingering effects of an earlier recession. C). The median family income can increase even though the family income of some subgroups within the population declines or fails to increase. 为什么B不对呢，题目中不是说the lingering effects of the deep and lengthy recession是possible explanation吗？
Q30. A recent survey of all auto accident victims in Dole
County found that, of the severely injured drivers and front-seat passengers, 80% were not wearing seat belts at the time of their accidents. This indicates that, by wearing seat belts, drivers and front –seat passengers can greatly reduce their risk of being severely injured if they are in an auto accident. The conclusion above is not properly drawn unless which of the following is true? A). Of all the drivers and front – seat passengers in the survey, more than 20% were wearing seat belts at the time of their accidents. A是怎么得出来的呢..答案只是说转化成数学思维，但没有提供相应的解释..题目中说的是有在司机和前排乘客严重受伤人群中，有80%没有系安全带，但A说的是所有司机和前排乘客中，超过20%的人系了安全带，这两者不是没有完全准确的对应吗？
Q39.George Bernard Shaw wrote: “That any sane nation, having observed that you could provide for the supply of bread by giving bakers a pecuniary interest in baking for you, should go on to give a surgeon a pecuniary interest in cutting off your leg is enough to make one despair of political humanity.” Shaw’s statement would best serve as an illustration in an argument criticizing which of the following? A). Dentists who perform unnecessary dental work in order to earn a profit. B). Doctors who increase their profits by specializing only in diseases that affect a large percentage of the population C). Grocers who raise the price of food in order to increase their profit margins D). Oil companies that decrease the price of their oil in order to increase their market share. E). Bakers and surgeons who earn a profit by supplying other people’s basic needs. 正确答案选A,但不知道B,C,D,E错在哪里，因为原文大意就是说人们为了自己的利益不惜代价，选A的原因是否因为‘unnecessary dental work’对应了原文里的
‘cutting off your leg’隐含了
‘unnecessary’的意思呢？
Q64. People cannot be morally responsible for things over which they have no control. Therefore, they should not be held morally responsible for any inevitable consequences of such things, either. Determining whether adults have any control over the treatment they are receiving can be difficult. Hence in some cases it can be difficult to know whether adults bear any moral responsibility for the way they are treated. Everyone, however sometimes acts in ways that are an inevitable consequence of treatment received as an infant, and infants clearly cannot control, and so are not morally responsible for, the treatment they receive. Anyone making the claims above would be logically committed to which one of the following further claims? D). If a given action is within a certain person’s control that person should be held morally responsible for the consequences of that action. E). No adult should be held morally responsible for every action he or she performs. 这道题正确答案是E，但解释上说D是原文结论的逆命题..但我怎么看都觉得D应该是否命题..请问这道题的结论到底应该是什么命题..？逻辑推理应该是怎样的呢？
Q66. When the rate of inflation exceeds the rate of return on the most profitable investment available, the difference between those two rates will be the percentage by which, at a minimum, the value of any investment will decline. If in such a circumstance the value of a particular investment declines by more than that percentage, it must be true that__________. Which one of the following logically completes the argument? A). the rate of inflation has risen. B). the investment in question is becoming less profitable C). the investment in question is less profitable than the most profitable investment available D). the rate of return on the most profitable investment available has declined E). there has been a chance in which particular investment happens to be the most profitable available 原文中已经指出了the difference is between inflation rate and the rate of return on the most profitable investment available，那么不是不管任何particular investment怎样decline, 这个investment in question都会less profitable than the most profitable investment available吗？我的表达有问题，但真的看不出来这道题的结论和问题之间有什么逻辑联系..十分不好意思，问题这么多，但是我搜寻了以后都没有十分有利的解释..诚请高手指点，感激不尽了~！！！
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