[求助]GWD11-12

Q12:

In Brindon
                    County, virtually all of the fasteners—such as nuts, bolts, and screws—used by workshops and manufacturing firms have for several years been supplied by the Brindon Bolt Barn, a specialist wholesaler.  In recent months many of Brindon
                    County’s workshops and manufacturing firms have closed down, and no new ones have opened.  Therefore, the Brindon Bolt Barn will undoubtedly show a sharp decline in sales volume and revenue for this year as compared to last year.

The argument depends on assuming which of the following?

1. Last year the Brindon Bolt Barn’s sales volume and revenue were significantly higher than they had been the previous year.
2. The workshops and manufacturing firms that have remained open have a smaller volume of work to do this year than they did last year.
3. Soon the Brindon Bolt Barn will no longer be the only significant supplier of fasteners to Brindon County’s workshops.
4. The Brindon Bolt Barn’s operating expenses have not increased this year.
5. The Brindon Bolt Barn is not a company that gets the great majority of its business from customers outside Brindon County.

 答案是E。为什么呀，我觉得应该是B。原文的论据是“In recent months many of Brindon
                        County’s workshops and manufacturing firms have closed down, and no new ones have opened”，即一些生产车间关门了，且没有新的开，结论是“the Brindon Bolt Barn will undoubtedly show a sharp decline in sales volume and revenue for this year as compared to last year.”即它将会销量和收入将下降。

此题真让我头疼。

请大家帮帮忙吧，谢谢了！！

啊,这个题我也错了和楼主错的是一个答案.

B: does not need to be smaller.