这个寂静题AWA，大家怎么写啊？

如题

4.（题库8题；1次）The following appeared in a presentation by the chief production manager of a machine parts manufacturing company at a management meeting:
“Our factory in Cookville is our most advanced and efficient. It is capable of producing ten drill（孔） bits for each dollar of production costs, whereas none of our other factories can produce more than seven drill bits per dollar of production costs. Therefore, we can reduce our overall drill bit production costs by devoting the Cookville factory entirely to drill bit production. Since reducing the production costs of individual machine parts is the only way to achieve our larger goal of reducing our overall production costs, dedicating the Cookville factory entirely to drill bit production and shifting all other machine part production to our other factories will help us to attain that larger goal.”

看完了只找到一个错误，题目实在太长了~~~~~~~~

来人帮帮忙吧，马上就要考了

1。all things are equal

2. overlook other factors to achieve our larger goal of reducing our overall production costs

3. gratuitous assumption - drill bit
                        is the most efficient item Cookville factory is capable of producing.

个人见解，欢迎讨论：

1 急于概括，前提不充分：由于Cookville工厂能生产更多的钻头，就认为全部由其生产可以降低成本。有可能Cookville工厂的生产能力是很高，可以生产10个，但是其管理成本、工人的工资、厂房的租用、设备运转的维护成本都比其它工厂高，那么根本达不到降本的效果（can not reduce our overall drill bit production costs by。。。。）

2因果关系不充分：the only way...减少每个机器的生产成本不一定是降本的唯一方法，可以降低人员的不合理的管理费用、降低原材料的采购费用

3无理假设：错误假设dedicating the Cookville factory entirely to drill bit production and shifting all other machine part production to our other factories就可以达到减少每个机器的生产成本。很有可能Cookville factory设备运转成本很高，全部由其生产钻头，反而增加生产成本。