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四显示自动闭塞区段通过信号机显示一个绿色灯光和一个黄色，准许列车按规定速度运行，要求注意准备减速，表示运行前方有（）闭塞分区空闲。

答案

参考答案：两个

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     Below are some suggestions given by the English children posted on the website about how to help
Africa. Which one do you think is the best?
     I think health is the most important thing. We need to make sure that the money we give is
spent wisely. The money should be spent first on clean water supplies and better health care.
                                                                             -----Robin, aged 16, Birmingham

     I think the most important thing is to improve the education of the African countries.
There is an old saying,"If you give a man a fish, you'll feed him for a day. If you teach him
how to fish, you'll feed him for a lifetime." We need to help people to help themselves, not
just throw money at the problem when it appears.
                                                                             -----Rebecca, aged 15, Liverpool

     People seem to give a lot more money to charity when there is a sudden, huge disaster (灾难) like the earthquake. It's good for people to do so, but I also think that everyone should
give a small part of their salary (工资) to charity. If everyone did that, it would make a big
difference.
                                                                      -----Mary, aged 14, Stratford-on-Avon

     Giving money to charity can help, but it's not the final answer. I think what these
countries need is a good government.
                                                                      -----Bethany, aged 16, Newcastle

     The best thing we can do is to send experts like engineers, doctors and teachers to
help the people to help themselves.
                                                                        -----Robert, aged 16, Cardiff
1. Which two children share the similar opinion?
A. Mary and Rebecca.
B. Bethany and Mary.
C. Rebecca and Bethany.
D. Rebecca and Robert.
2. Who pays more attention to Africans' health care?
A. Mary.
B. Robin.
C. Rebecca.
D. Robert.
3. What does Rebecca mean by saying "We need to help people to help themselves"?
A. We should help the teachers in Africa to improve their teaching ways.
B. We should help people in Africa how to build a good government.
C. We should help the African people develop skills to make a living.
D. We should help the African people build more schools.
4. What is Mary's opinion?
A. Everyone should do what we can to help the African people.
B. It is not good for people to give so much money to the African people.
C. It is very important to have a good government.
D. We can send more teachers there to help the African people.
5. Where are these suggestions posted?
A. In the textbook.
B. On the website.
C. In the guidebook.
D. In the magazine.
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单项选择题

危险化学品事故造成环境污染的，由设区的市级以上人民政府（）统一发布有关信息。

A、消防部门

B、公安部门

C、安监部门

D、环境保护主管部门
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