For several years, percapita expenditure on prescription drugs in Voronia rose by fifteen percent ormore annually. 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 didnot expand after this price freeze, per capita expenditure for prescriptiondrugs continued to increase by a substantial percentage each year.
Which of the following,if true, most helps to explain why the ministry's action did not achieve itsgoal?
(A) After priceincreases were prohibited, drug manufacturers concentrated on producing newmedications to replace existing products.
(B) The population ofVoronia rose steadily throughout the period.
(C) Improvements inmanufacturing processes enabled drug manufacturers to maintain high profitlevels on drugs despite the price freeze.
(D) In addition toimposing a price freeze, the government encouraged doctors to prescribe genericversions of common drugs instead of the more expensive brand-name versions.
(E) After priceincreases were prohibited, some foreign manufacturers of expensive drugs ceasedmarketing them in Voronia.
题中，政府已经禁止了制造商的提价，但没有特指是针对新药还是旧药。A项凭为什么说制造新药就可以提价？
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发表于 2012-1-2 15:04:02
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