GWD11-12

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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?



A. Last year the Brindon Bolt Barn’s sales volume and revenue were significantly higher than they had been the previous year.

B. The workshops and manufacturing firms that have remained open have a smaller volume of work to do this year than they did last year.

C. Soon the Brindon Bolt Barn will no longer be the only significant supplier of fasteners to Brindon County’s workshops.

D. The Brindon Bolt Barn’s operating expenses have not increased this year.

E. The Brindon Bolt Barn is not a company that gets the great majority of its business from customers outside Brindon County.

这道题之前有人问过，可答案并不能令我信服
B选项，典型的排除他因，取非的话，这些客户数量减少，但如果单店需求量增多导致总需求量增多，销量decline显然不成立
E选项我理解，也算是排除他因
可是为什么E比B好？这里面有没有其他的规则？

shanjun0888

我是这么理解的

如果brindon的主要客源不是本地用户，那么本地商家大量关门可以预示着brindon业绩下滑，但是无法判断是否是急速下滑(sharp)。
只有确定了brindon的主客源是本地以后，才能得出急速下滑这一结论

judydongxueni

b不对，要larger才可以，不smaller本身不够支撑题干

hjxsparrow

B是错误的
B说的是 剩下的The workshops and manufacturing firms 今年的工作量比他们自己去年的工作量小
实际上这不是一个需要的假设
因为即使这些剩下的公司 今年工作量超过了去年的工作量，只要它们的工作量比去年整体的（包括去年尚未倒闭的那些公司）小，那么Brindon Bolt Barn’s sales volume and revenue 就会decline

heart818

b不对，要larger才可以，不smaller本身不够支撑题干

-- by 会员 judydongxueni (2010/10/6 17:53:25)

就是说取非之后必须是larger enough才行，这里面有一个gap,我可以这么理解吗？