以下为验收的作用的是（）。 A．验收有利于维护国家利益 B．验收是避免物品积压，减少

The computer is important and can help us do a lot of things. Lots of children spend too much time on the computer. It’s bad for their study. Here is some advice(建议) for the parents.

◆Move the computer out of the child’s bedroom. It is good for children to reduce (减少) the time to use the computer.

◆Set a password for the computer. If your child wants to use it, he/she should get your permission (允许).

◆If your child uses the Internet for studying. He / She doesn’t use it to play games, praise (表扬) him/her for that.

◆When your child wants to use the computer to play games, you can take her/him to the library, get her/him together with friends to play sport.

小题1:The first advice (建议) is “________”.

A．Set a password for the computer

B．Set a time-limit for playing on the computer

C．Spend much time playing sport with the child

D．Move the computer out of the child’s bedroom小题2:The underlined phrase “Set a password” means ________ in Chinese.

A．设置桌面

B．设置密码

C．修改程序

D．更换电脑小题3:If your child uses the computer for studying, you can say “________” to him/her.

A．Sorry

B．Happy birthday

C．Good

D．No小题4:This passage is writing to ________.     

A．students

B．teachers

C．parents

D．workers小题5:What can the parents do when the child wants to play computer games?

A．They can take her/ him to the library.

B．They can let her/ him play computer games.

C．They can take her/ him to school.

D．They can praise him/her.

变坡点是坡道与坡道的交点，不是平道与坡道的交点。

在班轮运输中，承运人对于货物的责任起讫为( )。

A．自卖方仓库至买方仓库

B．自装运港至目的港

C．自装运港起吊至目的港脱钩

D．自接收货物至交付货物

通风系统由送风和排风两部分组成。

截面对某轴的静矩为零，该轴一定通过（）