PREP1-Q28，没看懂，求助于NN们~

evelyn205205

First-time computer buyers buying PXC home computers typically buy models that cost much less and have a smaller profit margin per computer than do PXC computers bought by people replacing their computers with more powerful models.Last year PXC's profits from computer sales were substantially higher than the previous year, although about the same number of PXC computers were sold and the prices and profit margins for each computer model that PXC sells remained unchanged.

If the statements above are true, which of the following is most strongly supported by them?

(A) PXC's competitors raised the prices on their computers last year, making PXC computers more attractive to first-time computer buyers.

(B) The number of people buying PXC computers who also bought PXC computer-related products, such as printers, was larger last year than the previous year.

(C) Among computer buyers who bought a PXC computer to replace their existing computer, the proportion who were replacing a computer made by a competitor of PXC was greater last year than the previous year.

(D) The proportion of PXC computers bought by first-time computer buyers was smaller last year than the previous year.

(E) PXC's production costs for its computers were lower last year than they had been the previous year.

答案是D。求NN们帮忙解释一下，没看懂这题。

weijiejing

这题是D吧...C无关的

zjsxsj

我也感觉是D。
first time buy无论是在cost还是profit margin 都比replace的要小，但是去年售出的电脑number,price,profit margin 都没变，但是profits却比前年要增加很多，那么唯一的原因是在售出的不变的number中，first buy 的比例在减少，replace的比例增多，因为后者的profit margin要高，这样才有可能使profits增加。而C在讲什么从竞争者中买replace，感觉不太相关

evelyn205205

我也感觉是D。
first time buy无论是在cost还是profit margin 都比replace的要小，但是去年售出的电脑number,price,profit margin 都没变，但是profits却比前年要增加很多，那么唯一的原因是在售出的不变的number中，first buy 的比例在减少，replace的比例增多，因为后者的profit margin要高，这样才有可能使profits增加。而C在讲什么从竞争者中买replace，感觉不太相关

-- by 会员 zjsxsj (2011/7/24 19:13:10)

是的，没错，答案是D，不好意思这位NN，我眼花了~

evelyn205205

yes，I made a mistake。The answer is D。