结构化分析方法是面向______进行分析的方法。

下列关于物质的类别的叙述正确的是（　　）

A．碳酸钠是氧化物

B．干冰是混合物

C．大理石是化合物

D．铁是单质

下列选项中，不属于《仲裁法》适用范围的是（）。

A.房地产转让纠纷

B.财产继承纠纷

C.财产租赁纠纷

D.财产保险合同纠纷

右肺根内结构，自上而下依次为()

A．肺静脉、肺动脉、主支气管

B．肺动脉、上肺静脉、主支气管

C．上叶支气管、肺动脉、肺静脉

D．肺动脉、上肺静脉、上叶支气管

E．肺动脉、肺静脉、主支气管

阅读理解。

     Some businesses and apartment buildings are telling kids to buzz off. A device (设备) called the Mosquito

is being used in the United Kingdom, Australia, and New York to keep kids from gathering in big groups and

causing trouble.

     The Mosquito makes a noise that only kids can hear. About 3,000 Mosquito units have been fixed in the

United Kingdom. In the United States, managers of an apartment building in New York City recently fixed

one to keep noisy kids from taking over the building's entrance-hall.

     A children's tights agency in England wants the device forbidden. The agency says the device unfairly

targets teens. Some also worry that the high sounds could hurt young ears. Fans of the Mosquito say it keeps

kids out of trouble and off private property.

     "Mosquito devices violate (侵犯) the human rights of kids. The use of the devices is targeted at kids

because it considers all kids as troublemakers.The devices are also harmful because the noise could hurt kids'

hearing. Besides violating our rights, the Mosquito is dangerous. It could hurt the ears and the hearing of teens,

babies and animals because they are more sensitive," says California eighth grader Kelly Straky."It is not right

to place the device in a public place. Teenagers have as much right to public places as adults. I listened to the

Mosquito sound, and it was extremely loud. It hurts no only your ears but also your whole head. It isn't just

annoying; it's painful. It should not be allowed."

     Fans of the Mosquito believe that property owners have a right to decide who can be on their property and

who cannot. Mosquito devices are a method of protecting private property and keeping the peace. Property

laws are put into to protect the public.

     "Yes, I do believe that the rights of teens should be valued, but we must always put ourselves in other

people's shoes and see the other side. In this case, doing so allows people to understand the negative effects,

such as crime, that loitering (滞留) can have on an area or a community," said Kayla Hill from New York.

1. The underlined phrase "buzz off" in Paragraph 1 probably means _____.

A. stay inside

B. go away

C. sit down

D. play games

2. According to the passage, the Mosquito_____ .

A. gives off a special smell

B. is a safety tool aimed at youths

C. is mostly purchased by the police

D. is intended for adult troublemakers

3. We can learn from the passage that Kelly Straky _____.

A. values the rights teens

B. keeps a close eye on her private property

C. hears the noise of the Mosquito frequently

D. believes many kids are causing annoying problems

4. In the last paragraph, Kayla Hill _____.

A. expresses her anger at kids

B. suggests protecting kids' hearing

C. argues against the use of the mosquito

D. stresses the need to fix the Mosquito

5. Who are probably fans of the Mosquito?

A. Pet owners.

B. Teachers.

C. Shop owners.

D. Parents.

DA101塔顶抽余C₄中丁二烯超标如何处理？