单选题 Since minors should not smoke, the proposed law prohibiting cigarette sales to minors is reasonable. However, the proposed ban on cigarette vending machines is like installing a roadblock to apprehend the one person in a hundred who drives without a license. A roadblock stops everyone, not just those who break the law.
The answer to which of the following questions would be most important in evaluating the objection above to a ban on cigarette vending machines?

A、 Do cigarette vending machines malfunction more frequently than do food vending machines?
B、 Are there current laws that prohibit the sale to minors of materials intended only for adults?
C、 Would an increase in taxes on cigarette sales help deter minors from purchasing cigarettes?
D、 Would a ban on cigarette vending machines inconvenience a significant number of cigarette-buying adults?
E、 (E) Are items more expensive when sold from a vending machine than when sold in retail stores?

【正确答案】 D

【答案解析】[解析] 本题读题重点在于段落后半部分，其推理为：因为拟议中的对售烟机的禁令就如同为捉拿100个人中的一个没有驾照而开车的人一样，所以该禁令不合适。我们用问题中间的关键词“a ban on cigarette vending machine”来定位选项，发现(D)中涉及关键词，且与段落推理的原因所做的类比相关。如果对(D)的答案为“yes”，则禁令使大多数购买香烟的成年人感到不方便，所以支持了“该禁令不合适”的结论，如果对(D)的回答为“no”，即禁令没有给大多数购买香烟的成年人造成不便，则反对了“该禁令不合适”的结论，所以(D)做了最好的评价，因此(D)正确；(A)在“cigarette vending machine”与“food vending machine”之间做了一个无关比较，所以(A)不对。