Now more and more people buying and selling things on the ln

Now more and more people buying and selling things on the lntemet.They buy and sell goods to make money.So hackers around the world are interested in this.
Hackers are often young people who love computers greatly.They use computers to get on the lntemet.looking for ways to go into computer systems run by banks,homes and all kinds of offices.If they go into a computer system,they will find other people's credit cards and try to steal the numbers .With the numbers they can take the money out of the bank.
Hacers often break in your computer system,but it's difficult to find them.So it is also diffcult for you to find the hacker who is taking your money out of the bank.Hackers can get the money from a bank with the credit card number they have got from your computer.
Scientists always ask people who have computers to pay attention to hackers.they also tellpeople how to fight the hackers.The answer is to choose clever numbers and change them often often and not to show your credit card our to anybody.If you are not careful enough,it's just like keeping the bank door wide open.
根据短文内容,选择最佳答案
1.Hackers around the world are interested in______
A.more and more people
B.people's buying and selling things on the Internet
C.the different banks
D.all kinds of offices
2.Hackers look for ways to go into computer systems____
A.to steal money directly
B.to get people's cradit cards
C.to steal the numbers of people's credit cards
D.to find the bank
3.It's ____to find the hackers if they break in your computer system.
A.easy B.hard C.useful D.best
4.Hackers can get the money from a bank____
A.with their own credit card number
B.with the credit card number they've got from your computer
C.without anything
D.with the computer system they 're known

1B
2A
3B
4B

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