请教gwd12 40

mndd

Whichof the following most logically completes the argument?

Researchersrecently asked dozens of shoppers, chosen at random coming out of a FoodBasketsupermarket, what they had purchased. The prices of the very same items at the nearest ShopperKing supermarketwere totaled and compared with the FoodBasket total.  The ShopperKing totals averaged five percent higher than theFoodBasket totals.  Nevertheless,this result does not necessarily show that shoppers at ShopperKing would savemoney overall by shopping at FoodBasket instead, since ______.

1. shoppers who shop regularly     at a given supermarket generally choose that store for the low prices     offered on the items that they purchase most often
   

for shoppers with more than     20 items, the ShopperKing totals averaged more than five percent higher     than the FoodBasket totals

many shoppers consider     factors other than price in choosing the supermarket at which they shop     most regularly

there is little variation     from month to month in the overall quantity of purchases made at     supermarkets by a given shopper
   E.    none of the people who conducted the research wereemployees of the FoodBasket supermarket

惭愧的是，这个题我没怎么读懂，请教nn解释

gwang5

研究人员随机抽取了从FS超市购物出来的几十个人进行调查。对他们在FS付的价钱与在最近的一家SK超市同时买同样的东西所付的价钱进行比较。结果是SK要贵5%。但是，这一结果不足以说明在SK买东西的顾客如果去FS购物的话会更省钱，因为：

A：经常在某家超市购物的顾客选择商店往往是因为他们最常买的东西在这家店最便宜；
B：如果顾客买了20件商品以上的话，那么在SK买比在FS买要多花不止5%；（相反）
C：许多顾客在选择超市时会考虑价格之外的因素（无关）；
D：对既定顾客而言，他每月在超市购买的东西数量变化不大（无关）；
E：进行调查的人员中没有FS超市的员工（无关）。

选A

mndd

哦，原来是这样，by shopping是这个意思，多谢了
不过，这个题还是很牵强啊，随机抽样的顾客如果是去FS买常用物品，那结果不就是确实贵了5%么