Computers are not the magical workers that some people say they are. They make mistakes, they re sometimes slower than human beings and they re easily fooled. The US used to conscript people with the help of a computer. The army sent out a card, which had to be filled in and sent back. It was easy to avoid being called up simply by spreading candle-waxon on the card. The computer couldn t read the card and did nothing with it.
It s in our everyday life that computers cause many problems. Let s get back to using people instead of computers, before a mistake that we can t put right.
The writer s main idea is __________.
A we d better use people instead of computers in our everyday life.
B we should not use computers because they always make mistakes
C computers are widely used in our everyday life
D if we want to work well, don t use the computers.
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