胎囊平均径线是1C.m，胎龄大约是A.4－5周  B.5－6周  C.7周  D.8

阅读理解。

     A lot of children in China now use the Internet to get useful knowledge and information, and to relax

in their free time. But some of them are 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 do 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 (信用) card 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 online alone.

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

were strangers.

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

right away.

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

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

1. The writer tells children to _______.

A. send their own photos

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 password to others

B. get useful knowledge and information

C. give out a credit card number

D. give out your home address

3. What shouldn't be done online?

A. Using bad language.

B. Sending message 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 Computer?

B. Surfing on the Internet?

C. Information on the Internet

D. Internet Safety Rules

用扇形统计图反应地球上陆地面积与海洋面积所占比例时，陆地面积所对应的圆心角是108°，当宇宙中一块陨石落在地球上，则落在陆地上的概率是【   】

A．0.2

B．0.3

C．0.4

D．0.5

根据汉语完成下列句子（每空一词）。

1. Clothes City的衣服是最便宜的，并且有最新的款式。

    The price of the Clothes City is _____ _____and it has the latest fashion.

2. 这儿有足够大家吃的食物。

    There's _____ _____ for everyone.

3. 在没有音乐伴奏的情况下，他跳起了舞。

    He danced _____ _____.

4. 上个月他们做了水质调查。

    They did a _____ _____ the water quality last month.

5. 冬天我们这儿很少下雨和雪。

    It seldom _____ or _____ here in winter.

某房地产经纪机构将客户登记表按客户所属区域分类，同一区域类别中再按收入高低排序。这种做法属于房地产经纪信息整理过程中( )。

A．筛选

B．编辑

C．分类

D．整序

运输环节案件调查取证方案的检查方法是什么？