(AAB8)求助Arguement B8的題意

請問有那位大大知道Arguement B8的題意啊?

有點困惑此arguement 為何?

B8. 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 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.”

感謝!!

这篇文章意思是说这个企业在很多地方都有工厂生产drill bit，但是在C这个地方每单位成本可以生产十个drill bit，其他地方最多生产7个。因此我们可以降低成本，通过把其他地方的生产都调到C来生产。并且其他地方都生产别的。

明显的错误是：

1。也许C已经生产饱和，在增加生产会导致成本剧增。这是not all things are kept constant

2。也许其他地方的销售价格更高，这里成本低但售价也低呢？

3。也许其他地方生产其他零部件成本会更高？生产drill bit占了相对优势。