Somoking in bed has long been the main cause of home fires.Despite a significant decline in cigarette smoking in the last two decades,however,there has been no comparable decline in the number of people killed in home fires.
Each one of the following statements,if true over the last two decades,helps to resolve the apprent discrepancy above EXCEPT:
a compared to other types of home fires,home fires caused by smoking i bed usually cause relatively little damage before they are extingished.
b home fires caused by smoking in bed often break out after the home's occupants have fallen asleep.
c smokers who smoke in bed tend to be heavy smokers who are less likely to quit smokers than are smokers who do not smoking in bed
d An increasing number of people have been killed in home fires that started in the kitchen.
e Population densities have increased, with the result that one home fire can cause more deaths that in previous decades.
答案是b, 可我觉得a更能解释其中的分歧.请各位G友指教.[em16][em16][em16][em16][em16][em16]作者: bingo 时间: 2003-3-9 11:25
pay attention to EXCEPT. A certainly can resolve the discrepancy,but B can't.作者: maymayfang 时间: 2003-3-9 12:36
However, the answer is B作者: bingo 时间: 2003-3-9 13:02
pay attention to "EXCEPT" in the question.作者: StephanieYun 时间: 2003-3-9 13:40
