单项选择题

We are told that a high-tech cash register is really just______.

A．an electric instrument of sight
B．a simple adding machine
C．a way to keep employees honest
D．an expensive piece of window dressing
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单项选择题
Grocery store price lists are updated by______.
A．a scanner
B．a telephone hookup
C．an adding machine
D．an employee
单项选择题
The overall purpose of the passage is to______.
A．describe the British as shoppers
B．introduce shopping places in London
C．show how the British have changed from shopkeepers to shoppers
D．indicate the British are better at doing business than other people
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