什么是多次反射波？

阅读理解。

     What is your favorite English letter? Many of you may say QQ. Why? Because so many of you chat with

your friends on QQ. What do you like about QQ? What do you talk about? The CCTV reporter, Miss Wang,

interviews three kids. Let's listen to what they say. 

     When do you chat on QQ? What do you talk about?

     Lin Yuhan, Xi'an: On weekends. We talk about homework and chat with each other.

     Tang Xuting, Shanghai: At weekends and when I don't have much homework. We exchange test answers

and chat.

     Yang Yuhang, Dalian: Our class goes online together at 4-6 pm on weekends. We complain about

homework, chat an talk about computer games.

     What do you put on your QQ blog (博客)?

     Lin: I put good articles I have found online on my blog. I also write articles myself. They are about funny

things that have happened in my class.

     Tang: I put pictures on my blog. Not my own photos, but pictures from my favorite Japanese cartoons

(动画片) like Tennis Prince and Conan.

     Yang: I put DV films on my blog. I shoot (拍摄) them during sports meetings and school parties. The most

popular one is about a dancing teacher. It is so funny that everyone watches it.

     How do you like QQ?

     Lin: It's a good space for us to make a record of our lives, of both good times and sad times.

     Tang: My friends and I may not have time to chat at school. But we can do it on QQ. It isvery helpful to

our friendships.

     Yang: If you chat with friends on the telephone, your parents sometimes listen in on your conversation.

There's no such problem with QQ You can relax and talk freely.

1. How many kids are interviewed about QQ?

A. Nine.

B. Six.

C. Three.

D. Two.

2. come from Shanghai.

A. Miss Wang

B. Lin Yuhan

C. Yang Yuhang

D. Tang Xuting

3. What does Yang Yuhang talk about on QQ on weekends?

    ①homework 　　②chat 　　③test answers 　　④computer games

A. ①②　　　　　

B. ②③

C. ①②④　　　　

D. ②③④

4. What does Lin Yuhan put on her QQ blog?

A. Some pictures.

B. Good articles.

C. DV films.

D. Japanese cartoons.

5. Which one is TRUE according to this article?

A. Lin says QQ is very helpful to their friendships.

B. Yang says he can Chat freely with many friends and relax on QQ.

C. Tang says QQ is a good 8pace for them to make a record of their lives.

D. Tang says he chats on QQ on weekdays though he has lots of homework.

《住宅室内装饰装修办法》规定，装修人擅自拆改供暖、燃气管道和设施造成损失的，由谁负责赔偿？（）

A.装修人

B.装修单位

C.物业公司

D.建设单位

会计核算必须以各单位在生产经营或预算执行过程中实际发生的包括引起或未引起资金增减变化的经济活动为依据。()

食积初停，壅滞未甚，病情较浅，可见的脉象是（）。

A．脉紧如转索无常

B．脉浮大

C．脉弦

D．脉滑

E．脉涩