题目内容：

    Nowadays, computer and Internet are playing an important part in our life. Some people even say they can’t live without them. We usually need to set passwords when we use computers and Internet. But not all the passwords(密码) are safe. In order to keep our accounts（账户） and personal information safe, we must learn how to make safe passwords.

How can you make your computer and Internet passwords safe? Experts have some tips for you. You’d better remember the tips and they are useful. Here are the tips.

First, make your password out of capital letters. If your password is made of capital letters, it will be difficult for others to get into your account. It only takes a hacker（黑客） 10 minutes to work out a six letter password made of small letters. But the same password in capital letters 10 hours to work out.

Second, add numbers or symbols to your password. It may be much safer. Sometimes such password is not easy to remember, but it is really safe.

Third, never use personal information for passwords and use different passwords for different accounts. Experts say that a user should change his or her passwords every 90 days. In this way, hackers won’t guess your passwords.

1.What does the word “capital” mean in the passage?

A. difficult B. nice C. big D. different

2.You should change your password_________.

A. Every 10 days B. Every month

C. Every two months D. Every three months

3.According to the passage, which of the following is NOT a safe password?

A. 901112 B. Liz287 C. LUCKY3 D. 432Ac%