求助 prep cr 07 34题

wesker123

34.   (31982-!-item-!-188;#058&005681)

For several years, per capitaexpenditure on prescription drugs in Voronia rose by fifteen percent or moreannually.  In order to curb thesedramatic increases, the ministry of health prohibited drug manufacturers fromraising any of their products' prices. Even though use of prescription drugs did not expand after this pricefreeze, per capita expenditure for prescription drugs continued to increase bya substantial percentage each year.

Which of the following, if true,most helps to explain why theministry's action did not achieve its goal?

(A) After price increases wereprohibited, drug manufacturers concentrated on producing new medications toreplace existing products.

(B) The population of Voronia rosesteadily throughout the period.

(C) Improvements in manufacturingprocesses enabled drug manufacturers to maintain high profit levels on drugsdespite the price freeze.

(D) In addition to imposing a pricefreeze, the government encouraged doctors to prescribe generic versions ofcommon drugs instead of the more expensive brand-name versions.

(E) After price increases wereprohibited, some foreign manufacturers of expensive drugs ceased marketing themin Voronia.

答案是A 比较明显。但是想问下题目中的per capita expenditure。还有没有另一种可能答案是如果Voronia的购买药人数减少了，但是总需求没变，这样per capita expenditure也是提高的