[求助]关于7宗罪，请指教

我是新手，刚开始看作文，总是不太明白gratuitous assumption该怎么用？结论无据是只能用于攻击题目的最主要的conclusion，还是可以对于每个分结论都能用？比如下面这个题：

44. The following is part of a business plan created by the management of the Megamart grocery store.

“Our total sales have increased this year by 20 percent since we added a pharmacy section to our grocery store. Clearly, the customer’s main concern is the convenience afforded by one-stop shopping. The surest way to increase our profits over the next couple of years, therefore, is to add a clothing department along with an automotive supplies and repair shop. We should also plan to continue adding new departments and services, such as a restaurant and a garden shop, in subsequent years. Being the only store in the area that offers such a range of services will give us a competitive advantage over other local stores.”

我可以说，商场认为销量上升，是因为新加了pharmacy section是base on gratuitous assumption么？因为还有其他原因也可导致销量上升，比如...云云

还是只能针对最后一句，认为他根据之前的论述得出add a range of services will give us a competitive advantage over other local stores.是base on gratuitous assumption.

不知道我把我的疑问表达清楚了没有...—__—！

请大家给指点一下迷津！thanx!

是不是发的太晚了...自己先ding下

我觉得每一部分都有各自的assumption的吧...用在中间应该没错...呵呵但是一种说法毕竟不要用太多次啦~

个人看法

恩~有人给与肯定就对了~我就是一直都摸不准，不敢用~

谢谢chch269