冷冻水系统故障后，现场应立即停止终聚真空系统EG喷淋。（）

阅读理解。

     Raising pets is a popular online game among reenagers. " More than 20 of my classmates have

adopted (领养) pets online, while last year the number was just 10," said Wang Hui, a middle school

student from Beijing, who also raises pets online.

     If you go to some websites,  you can adopt virtual (虚拟的) pets like penguins, chickens, dogs and

elephants. You can feed, wash, talk to and play with your pet.

     Dai Yingshuang of Shanghai raises pets on Kaixin001. com. The 15-year-old said it is great fun. She

thinks that she has "also learned how to take care of others".

     If one doesn't feed and care for the pet, it becomes unhappy and unhealthy.  So raising an online pet

means spending a lot of time online.

     This makes many parents worried. They fear there will be bad influence on the children's studies.

     Dai said that she usually asks her uncle to take care of her pet, while she is at school.

     Wang Zhaotong, from Anhui, has been raising a penguin on QQ.com since last year. The 14-year-old

takes good care of the penguin.

     She said her parents knew about the penguin and think it's okay.

     If the students can keep the balance between studying and playing, it's not bad for them to "raise"

pets online.

1. According to the passage, over _______ of the students in Wang Hui's class have adopted pets

    online this year.

A. 10              

B. 20

C. half            

D. all

2. What does Dai Yingshuang think of raising pets online?

A. It's not interesting at all.

B. It wastes time.

C. It's not good for her study,

D. It is great fun.

3. Which of the following is NOT true according to the passage?

A. Raising an online pet doesn't mean spending a lot of time online.

B. If one doesn't feed the pet, it becomes unhappy and unhealthy.

C. Raising pets online makes many parents worried.

D.The writer thinks it doesn't matter if the students keep the balance between studying and playing.

4. How many examples are mentioned in the passage?

A. Two.            

B. Four.

C. Five.            

D. Three.

5. What does the passage mainly talk about?

A. Raising pets online is popular among teenagers.

B .It's bad to raise pets online.

C. How to raise pets online.

D. It's good to adopt pets online.

春秋战国时期，除了著名的编年体史书《春秋》、《左传》之外，还有（）和《穆天子传》。

夫山居而谷涉者，膢腊相遣以水

突发公共卫生事件发生后，（）设立全国突发公共卫生事件应急处理指挥部。

A.国务院

B.当地政府

C.有关部门

D.应急指挥办

右图是反射弧的组成示意图（虚线内为神经中枢）。请据图回答：

若神经中枢位于脊髓，则最能体现该反射受高级神经中枢控制的是（）（填字母）。