19. In Australia the population that is of driving age has grown large over the last five years, but the annual number of traffic fatalities has declined. This leads to the conclusion that, overall, the driving-age population of Australia consists of more skillful drivers now than five years ago. Each of the statements below, if true, weakens the argument EXCEPT: (A) Three years ago, a mandatory seat-belt law went into effect throughout Australia. (B) Five years ago. Australia began a major road repair project (C) Because of increases in the price of fuel Australians on average drive less each year than in the preceding year. (D) The number of hospital emergency facilities in Australia has doubled in the last five years (E) In response to an increase in traffic fatalities. Australia instituted a program of mandatory driver education five years ago. Answer: E why not B? B也算WEAKEN吗?修好了路难道一定导致交通死亡率下降吗?我觉得B提供的信息需要加入一些additional information才能WEAKEN原文。
[此贴子已经被作者于2003-5-30 2:13:40编辑过] |