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  3. Supermarkets are trying out new computers that make shopping carts more intelligent. They will help shoppers find cups or toilet

Supermarkets are trying out new computers that make shopping carts more intelligent. They will help shoppers find cups or toilet

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问题    Supermarkets are trying out new computers that make shopping carts more intelligent. They will help shoppers find cups or toilet soap, and keep a record of the bill.
   The touch-screen devices are on show at the Food Marketing Institute’s exhibition here this week. "These devices are able to create value and get you around the store quicker, " said Michael Alexandor, manager of Springboard Retail Networks Inc. , which makes a smart cart computer called the Concierge.
   Canadian stores will test the Concierge in July. A similar device, IBM’s " shopping buddy, " has recently been test-marketed at Stop & Shop stores in Massachusetts. Neither device tells you how many fat grams or calories are in your cart, but they will flash you with items on sale. The idea is to make it easier for people to buy, not to have second thought that maybe you should put something back on the shelf.
   People can use a home computer to make their shopping lists. Once at the store, a shopper can use a preferred customer card to start a system that will organize the trip around the store. If you’re looking for toothpicks, you type in the word or pick it from a list, and a map will appear on the screen showing where you are and where you can find them.
   The devices also keep a record of what you buy. When you’re finished, the device figures out your bill. Then you go to the checker or place your card into a self-checkout stand and pay. Of course, the new computerized shopping assistants don’t come cheap.
The underlined word "they" in the first paragraph refers to______.
选项 A、shop assistants
B、supermarkets
C、shop managers
D、shopping carts
答案D
解析 由题干中的in the first paragraph和they定位于文章第一段第二句。判断指代词指代何物，必须联系上下文，由Supermarkets are trying out new computers that make shopping carts more intelligent．They will help shoppers可以推断出they指的是shopping carts，选项D符合这个意思，故选D。
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