When a new restaurant, Martin's Cafe, opened in Riverville last year, many people predicted that business at the Wildflower Inn, Riverville's only other restaurant, would suffer from the competition. Surprisingly, however, in the year since Martin's Cafe opened, the average number of meals per night served at the Wildflower Inn has increased significantly. Which of the following, if true, most helps to explain the increase? A. Unlike the Wildflower Inn, Martin's Cafe serves considerably more meals on weekends than it does on weekdays. B. Most of the customers of Martin's Cafe had never dined in Riverville before this restaurant opened, and on most days Martin's Cafe attracts more customers than it can seat. C. The profit per meal is higher, on average, for meals served at Martin's Cafe than for those served at the Wildflower Inn. D. The Wildflower Inn is not open on Sundays, and therefore Riverville residents who choose to dine out on that day must either eat at Martin's Cafe or go to neighboring towns to eat. E. A significant proportion of the staff at Martin's Cafe are people who formerly worked at the Wildflower Inn and were hired away by the owner of Martin's Cafe. 答案是B 我觉得B没有构成解释啊 请教nn~作者: liufeng881025 时间: 2010-7-26 22:59
我的理解是： B说新餐馆的客人都是之前不是老餐馆的，首先这说明老顾客不受影响；然后说有时候B的顾客超过了他能承受的范围，那么这一部分人就回去老餐馆，所以老餐馆的MEAL就增加啦作者: spz316 时间: 2010-7-27 14:24
本文有两个变化，希望你能读出来 1，Martin's Cafe开业了 2，Wildflower Inn的利润增加了 解释的话就把这1，2挂上钩就好了，就是找一个因素，由于MC开业导致，并使得2增加。 对于2，在本题中是由顾客量导致的 Wildflower Inn的利润=原有顾客（设x）+新来顾客(设y)
