请你找出一个生活中成正比例或成反比例的实例，编成一道应用题并解答．

用m、n表示两条不同的直线，α表示平面，则下列命题正确的是（　　）

A．若m∥n，n⊥α，则m∥α

B．若m∥α，n⊥α，则m∥n

C．若m⊥n，n⊥α，则m⊥α

D．若m⊥α，n⊥α，则m∥n

英国于1996年9月23日颁布了世界上第一个网络监管的行业性法规（）。

A.《3R安全规则》

B.《互联网信息服务自律公约》

C.《诚信自律的公约》

D.《互联网行业自律公约》

(1)该行星的同步卫星距行星表面的高度h．

(2)该行星的自转周期T_R．

阅读理解。

     Most people will answer a ringing phone. Usually you don't know who is phoning or how urgent

their business is, so a ringing phone is difficult to ignore. In one experiment, a researcher wrote down

the numbers of several public phones in stations and airports. Then he called the numbers. Someone

nearly always answered. When he asked why, people usually said, "Because it rang."

     A few years ago in New Jersey, a man with a rifle killed 13 people. Armed police surrounded his

house but he refused to come out. A reporter found out the phone number of the house and called.

The man put down his rifle and answered the phone. "What do you want?" he said, "I'm really busy

right now."

     Imagine you're at work and the phone is ringing in someone else's office. Do you answer it or not?

In one survey on telephone use, 51% of participants told researches that they did. We can't ignore the

phone and for the reason, it forces its way into our lives. It interrupts what we are doing and on top of

that, the caller is often someone we don't really want to talk to. However, in the survey, 58% said they

never took the phone off the hook, and 67% didn't mind if someone called during a television programme. For 44% it wasn't a problem if someone rang during a meal, while only 28% were annoyed or upset.

If someone phoned in the middle of the night, 40% told researchers that they got nervous or frightened,

while around 30% got angry.

      Of course, when someone is really annoying, you can choose to hang up on him/her. This is in fact

one of the rudest things you can do on the phone, but 79% said they were prepared to do it in some

cases. Only 6% told researchers they never hung up on people.

1. In the experiment, people answered the researcher's phone _______.

A. for fear that it was urgent

B. in order to help him gather the data

C. to test the function of the phone    

D. to show their interest in the survey

2. The gunman answered the phone because _____.

A. he decided not to give up his resistance to the police

B. he tended to answer a ringing phone

C. he wanted to tell the reporter that he was too busy to offer any information

D. he intended to be friendly with the media

3. According to Para.3, most people _____ when they were doing their work or watching television.

A. minded the ringing of the phone

B. couldn't ignore the phone

C. refused to answer the phone in someone else's office

D. kept the phone ringing

4. What is implied by the sentence "79% said they were prepared to do it in some cases"(in the

last paragraph)?

A. They were annoyed by the rude callers.

B. They were prepared to punish those rude callers.

C. They were going to hang up on annoying phones.

D. They also agreed that it was a rude thing to hang up on others.

5. The purpose of the survey is to find out _____.

A. how the phone interrupts people's work

B. what role the phone plays in people's lives

C. why people mind a ringing phone sometimes

D. when the phone communication is more welcome

矿物的透明度是指矿物能够透光的能力。根据矿物透过光线的能力，可分为（）。

A.全透明的

B.半透明的

C.不透明的

D.透明的