29. The price of a full-fare coach ticket from Toronto to Dallas on Breezeway Airlines is the same today as it was a year ago, if inflation is taken into account by calculating prices in constant dollars. However, today 90 percent of the Toronto-to-Dallas coach tickets that Breezeway sells are discount tickets and only 10 percent are full-fare tickets, whereas a year ago half were discount tickets and half were full-fare tickets. Therefore, on average, people pay less today in constant dollars for a Breezeway Toronto-to-Dallas coach ticket than they did a year ago. Which one of the following, if assumed, would allow the conclusion above to be properly drawn? (A) A Toronto-to-Dallas full-fare coach ticket on Breezeway Airlines provides ticket-holders with a lower level of service today than such a ticket provided a year ago. (B) A Toronto-to-Dallas discount coach ticket on Breezeway Airlines costs about the same in constant dollars as they did a year ago. (C) All full-fare coach tickets on Breezeway Airlines cost the same in constant dollars as they did a year ago. (D) The average number of coach passengers per flight that Breezeway Airlines carries from Toronto to Dallas today is higher than the average number per flight a year ago. (E) The criteria that Breezeway Airlines uses for permitting passengers to buy discount coach tickets on the Toronto-to-Dallas route are different today than they were a year ago.
Answer is: B. C 好像也挺好呀！一年前的 the cost of full-fare coach tickets == 现在的 full-fare coach tickets，不也可以得到结论吗：on average, people pay less today in constant dollars for a Breezeway Toronto-to-Dallas coach ticket than they did a year ago. 我一碰到数学的就发怵。 --------------------------------------------------------------------------------------------------------
51. People who have political power tend to see new technologies as a means of extending or protecting their power, whereas they generally see new ethical arguments and ideas as a threat to it. Therefore, technical ingenuity usually brings benefits to those who have this ingenuity, whereas ethical inventiveness brings only pain to those who have this inventiveness. Which one of the following statements, if true, most strengthens the argument? (A) Those who offer new ways of justifying current political power often reap the benefits of their own innovations. (B) Politically powerful people tend to reward those who they believe are useful to them and to punish those who they believe are a threat. (C) Ethical inventiveness and technical ingenuity are never possessed by the same individuals (D) New technologies are often used by people who strive to defeat those who currently have political power. (E) Many people who possess ethical inventiveness conceal their novel ethical arguments for fear of retribution by the politically powerful.
answer is B, 怎么来的？ C 什么不对呢？ 是不是因为 never, 而文章里是usually. 我觉得没有一个答案是对的。
No.29 is very clear! No.51 still confused. Could you explain this to me: technical ingenuity usually brings benefits to those who have this ingenuity, whereas ethical inventiveness brings only pain to those who have this inventiveness. (those who have this ingenuity 是 People who have political power ?) many thanks!
technical ingenuity usually brings benefits to those who have this ingenuity, 是指拥有科学天份的人，这种天份会带给他们（指他们自己，非有政治权力的人）好处，这里存在一个ASSUMPTION：Politically powerful people tend to reward those who they believe are useful to them ；
同理，ethical inventiveness 也会给拥有它们的人带来痛苦，ASSUMPTION：Politically powerful people tend to punish those who they believe are a threat.
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发表于 2003-10-2 06:54:00
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