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题库 / GMATLA-CR-41
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?
Last year the Brindon Bolt Barn's sales volume and revenue were significantly higher than they had been the previous year.
The workshops and manufacturing firms that have remained open have a smaller volume of work to do this year than they did last year.
Soon the Brindon Bolt Barn will no longer be the only significant supplier of fasteners to Brindon County's workshops.
The Brindon Bolt Barn's operating expenses have not increased this year.
The Brindon Bolt Barn is not a company that gets the great majority of its business from customers outside Brindon County.
在Brindon，所有的工作室，生产厂用的螺丝都是由Barn提供。最近许多工作室都倒闭了，没有新的开张。所以Barn今年的销售额比起去年的销售额会减少。问assume
choice b, 仍然开着的工作室和生产厂今年的工作量减少了。strengthen the conclusion，说明开着的那些店的Barn订单也因此减少了
choice c, 很快Barn就不再是唯一的fastener的供应商。irrelevant
choice e, Barn并不是一家大多数生意来自于county之外的公司。correct，取非说明Barn大多数生意来自外面，削弱结论
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