大全－20－1 谁能给我讲讲啊

alice1880505

1.     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?

(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）

(E) Typically, over 70 percent of the sales of videocassette recorders made in a year occur in the months of November and December.

我觉得答案应该是D。。。。。。

deedeexoxo

答案是E. 如果今年上半年的销售量还没有达到去年全年的一半，那么一般情况下今年的销售量会比去年少。但是问你如何削弱这个观点，那就是说在什么条件下今年的销售量比去年多。唯一一种情况就是在下半年销售量狂增。E说去年70%的销售量都在年终左右，那么今年的大部分销售量也应该在年终。如果今年70%的销售量都在年终，就算年终的销售量和去年一样，那么70% + 35%已经超过去年的100%了。