武汉社保卡有设置密码吗？忘记密码被锁怎么办？

阅读理解。

     Many children use the Intcrnet to get useful knowledge and information, and to relax in their free time.

But some of thcm arc not using it in a good way. Here are some rules to make sure you are safe and have

fun on the Internet.

     Make rules for Internet use with your parents. For example. when you can go online, for how long

and what activities you can go online.

      Don't give your password (密码) to anyone else, and never give out the following information-your

real name, home address, age, school, phone number or other personal information.

     Check with your parents before giving out a credit card (信用卡) number.

     Never send a photo of yourself to someone in e-mail unless your parents say it's OK.

     Check with your parents before going into a chat room. Different chat rooms have different rules

and attract different kinds of people. You and your parents will want to make sure it's a right place for you.

      Never agree to meet someone you met on the Internet without your parents' permission (允许).

Never meet anyone you met on line alone.

     Always remember that people online may not be who they say they are. Treat everyone online as

strangers.

     If something you see or rcad online makes you uncomfortable, leave the site. Tell a parent or

teacher right away.

     Treat other people as you'd like to be treated. Never use bad languages.

     Remember-not everything you read on the Internet is true.

1. The writer tells children to _____.[ ]

A. send their photos to him

B. make rules for Internet use with parents

C. believe everything they read on the Internet

D. give out their personal information

2. It's good for children to _____ on the Internet. [ ]

A. give their password to others

B. get useful knowledge and information

C. give out a credit card number

D. go into a chat room as they'd like to

3. What shouldn't be done when you are online? [ ]

A. Using bad languages.

B. Sending messages and e-mails.

C. Leaving the site if you feel uncomfortable.

D. Treating everyone online as strangers.

4. If your parents don't agree, never _____.[ ]

A. read anything on the Internet

B. relax in your free time

C. have a face-to-face meeting with anyone you met online

D. treat other people as you'd like to be treated

5. The best title for this passage is "_____". [ ]

A. How to Use Computers

B. Surfing the Internet

C. Information on the Internet

D. Internet Safety Rules

设窗体的名称为Form1，标题为Win，则窗体的MouseDown事件过程的过程名是

A．Form1_MouseDown

B．Win_MouseDown

C．Form_MouseDown

D．MouseDown_Form1

决定利率高低的利润率是（）。

A.单个企业的利润率

B.一国的平均利润率

C.社会平均利润率

D.以上答案均不正确

电杆埋设深度，一般为杆长的（）

A.二分之一

B.三分之一

C.六分之一

D.十分之一

东方装饰公司承担了某住宅楼的装饰装修施工任务。根据设计，一部分管道嵌入墙体和地面内。对于嵌入墙体、地面的管道应进行防腐处理，并用水泥砂浆保护，并应作隐蔽工程的验收。在一般抹灰施工中，为保证室内墙面的施工质量，施工前，先设置灰饼，再进行大面积施工。

在施工过程中，墙内热水管的保护层厚度均不小于( )。

A．10mm

B．12mm

C．15mm

D．18mm