明朝所以能出现郑和下西洋的壮举，主要原因是[ ] A．海上交通发达 B．明朝前期

What is “Walk to school”?

Now we are working on a program of “walk to school”. We would like as many parents and children as possible to take part, even if in a small way. Children who walk to and from school along with their parents can learn essential(基本的) road safety and life skills.

You can take part by…

● Walking to and from school with your child every day.

● Walking for one or two days during the week.

● Encouraging others to walk, if you have already done.

Walking is great!

● Walking is great exercise! A walk is good for your body and can keep you fit.

● You won’t have to waste time looking for a parking site(停车点).

● It’s free. You’ll save money by not using the car.

● It’s pollution free.

● It’s a good chance to your children and to meet other parents, too.

Enjoying walking to school!

Here are some suggestions to help you and your child enjoy walking to school.

● Plan a safe route together.

● Teach children what a kerb(马路牙子) is and what it means.

● Encourage your child to help you choose the safest places to cross the road.

● Look at and discuss the things you see on your way—especially road signs and what they mean.

Walk to school! Thousands of parents and children have already taken part, could you?

Please go to WWW.walkschool.org.uk for more information.

小题1:“Walk to school” may be _________.

A．a relaxing advertisement

B．an interesting sign

C．a meaningful program

D．a colorful picture小题2:Who are encouraged to take part in Walking to school?

A．Parents and children

B．Drivers and workers.

C．Teachers and students.

D．Mothers and fathers.小题3:Walking to school can help you __________.

A．how to walk to school quickly

B．save time to get to school

C．draw some pictures of the kerb and road signs

D．learn essential road safely and life skills小题4:Which is NOT the benefit(好处) of walking to school?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

A．It can keep you fit.

B．It can save money.

C．It won’t pollute the air.

D．It can’t help you make new friends.小题5:According to the writer, you can learn more about “walk to school” by?

A．reading a newspaper

B．going to the Internet.

C．making a phone call

D．having a traffic lessons.

根据句意及首字母或汉语提示，补全单词。

小题1:Mrs. Green often goes to the m__________ to buy some vegetables.

小题2:Tom is very sad. His little dog has been d___________.

小题3:It’s impolite to d__________ others while they are sleeping.

小题4:China has developed __________ (迅速地) in the past ten years.

小题5:__________ (虽然) there were many difficulties, they didn’t give up.

高炉内液泛现象是指什么？

石油馏分的其他几种平均沸点可借助立方平均沸点与蒸馏曲线斜率由图查得。

关于RMON，下列说法中正确的是（）。

A、RMON监视器可用两种方法收集数据：一种是通过专用的RMON探测器（probe）；另一种方法是将RMON代理直接植入网络设备（路由器、交换机、HUB等）使它们成为带RMONprobe功能的网络设施。

B、RMON监视下两层即数据链路和物理层的信息，可以有效监视每个网段，但不能分析网络全局的通信状况，如站点和远程服务器之间应用层的通信瓶颈。

C、RMON2是RMON的扩展，监视网络至应用层的信息，提供了整个网络端到端的分析能力。

D、目前大部分RMONAgent只支持统计、历史、告警、事件四个组

E、以上说法均不正确