logic

yeungmarcoUID: 3366325

4.Many people acquire software programs for their   
home computers by illegally copying those programs   
rather than purchasing them. People who own home   
computers must be making, on average, fewer illegal   
copies of software programs than before, however,   
since the average number of software programs that   
people purchase to use on their home computers has   
increased substantially over the past five years.   

Which of the following, if true, most strengthens the   
argument?   
(A) The number of home computers in use has   
increased substantially over the past five years.
(B) Five years ago, about half of the software pro-
grams used on home computers had been   
illegally copied rather than purchased.
(C) Most people who have home computers use   
their computers more frequently the longer   
they have them.
(D) Few people who prefer to copy computer   
software programs illegally cannot copy the   
software programs they want because they   
have no acquaintances who have those   
software programs.
(E) On average, people with home computers have   
the same number of software programs today as   
people with home computers did five years ago.   


ans:E

請問這題為什麼E?

泠泠曲罢UID: 3252498

这题的gap存在在数量和比例上-换言之 数量增加不代表比例增加

所以即使 the average number of software program has increased over the past five year, doesn't mean the average number of illegal software program has increased. 而E 选项  On average, people with home computers have the same number of software programs today as  people with home computers did five years ago.   正因为总数变大了 so the average number of illegal software is decreasing

kekele007UID: 3363572

这跟PPII里deer那个不是一样的吗，P:买软件的多了 C：copy的少了，prephase的答案就是软件被使用的总数量没变或者用软件的人没变多