试题 题型：未知 难度等级：

阅读理解。 根据短文内容，从短文后的选项中选出能填入

阅读理解。       根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项 为多余选项。      Here are some easy steps for you to stay safe and secure on the Internet.         1   Never give out your full name , address and phone number, unless it is a safe site or it is a well- known site.      Protect your money. Do not give out your card information unless it is a secure site. You can tell if the site is safe by looking at the lower part of your screen.    2  If it is locked, the site is secure. "Unlocked" means that you should not give a card number.      Don't believe "Get Rich Quick!" If it sounds too good to be true- it is! If you get an e-mail that says you can make thousands of dollars in a few days, it isn't true. Most likely it will cost you in the end.   3             A good virus scan(杀毒软件).Update your virus scan.   4   When you buy a virus scan, it may have been on the shelves for months, so you need to update it frequently.         5  Do not open e-mail attachments(附件)that are programs. Receiving these programs in e-mail is harmless, but opening and running them can be dangerous. A. There is a small lock. B. Stay away from these offers! C. New viruses come out daily. D. There are always some unsafe sites. E. Keep your main e-mail address private. F. Don't give out personal information. G. Protect yourself from dangerous e-mail viruses.