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  3. In the first half of this year, from January to June, about three million videoc

In the first half of this year, from January to June, about three million videoc

游客2025-02-26  7
问题 In the first half of this year, from January to June, about three million videocassette recorders were sold. This number is only 35 percent of the total number of videocassette recorders sold last year. Therefore, total sales of videocassette recorders will almost certainly be lower for this year than they were for last year. Which of the following, if true, most seriously weakens the conclusion above?
选项 A、The total number of videocassette recorders sold last year was lower than the total number sold in the year before that.
B、Most people who are interested in owning a videocassette recorder have already purchased one.
C、Videocassette recorders are less expensive this year than they were last year.
D、Of the videocassette recorders sold last year, almost 60 percent were sold in January.
E、Typically, over 70 percent of the sales of videocassette recorders made in a year occur in the months of November and December.
答案 E
解析 段落的推理为今年1月到6月录像机销售仅为去年销售总数的35％，所以，今年总销量要低于去年。我们读题明显发现前提中的“1月到6月”与结论中的“今年”有跳跃，如果一年中录像机销售超过70％是在11月和12月进行的，正如(E)所说，那么就断开了前提与结论的连接，也就Weaken了推理的结论。因此(E)正确。
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