生态城市规划内容。

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问题:

生态城市规划内容。

考点:环境科学技术及资源科学技术环境规划学的理论基础环境规划学的理论基础题库
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Here is some information about homes in the United States and the people who live in them.

In the early 1990s, there were more than 91 million homes, or households(家庭) in the US. About 64% of the people in the US own their homes. The rest(其余的) rent(租) their homes. The rented homes are usually apartments(公寓).

74%of the people in the US make their homes in or around cities. 26% live in the country(乡下). Dogs live in about 40% of all homes in the US and about half that number have cats.

Families in the US are becoming smaller. On the average(平均), 2.64 people lived in a home in the early 1990s. In 1960, the average was 3.5.

Half of the teenagers (青少年) in the US have their own bedrooms.

An American moves(搬家), on the average, twelve times in his or her life. In Japan a person moves about five times, and in England a person moves eight times.

小题1:Where do most Americans live?

A.Around the country.

B.In or around cities.

C.In the country.

D.In cities.小题2:How many American families own a cat?

A.40%

B.64%

C.20%

D.74%小题3:Families in the US are      .

A.becoming bigger .

B.becoming smaller

C.becoming happy.

D.not sure小题4:Which of the following is TURE?

A.Americans move more often than the English.

B.The average number in a family now is getting bigger than that in the 1960s.

C.The Japanese move . more often than the British.

D.Most young people of the US have no bedrooms of their own.小题5:The best title for the passage is about       .

A.Americans moving homes all the time

B.Pets in American families.

C.City families & country families.

D.Americans families.

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关于声波的说法正确的是(  )

A.声波是靠介质传播的,它在真空中不传播

B.正常人耳能听到振动频率范围约为20Hz到2×103Hz

C.声波在空气中的传播速度在15℃时约为346m/s,比在水中传播要快

D.声波在不同媒质中传播的速度不同,但保持原有的振幅不变

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下列对有机物的叙述中不正确的是              

A.邻二氯苯不存在同分异构体说明苯分子中6个碳原子之间的键是完全相同

B.若乙酸分子中的O 都是16O,乙醇分子中的O都是18O,则二者发生酯化反应生成物的水的相对分子质量为18

C.只用溴水就可以鉴别己烯、乙酸、苯、溴苯四种无色溶液或液体.

D.硝基、羟基、乙基等都是官能团

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下列有关边境旅游的说法中,正确的有()。

A.边境旅游,是出国旅游的一部分

B.指经批准的旅行社组织和接待我国及毗邻国家的公民,集体从指定的边境口岸出入境

C.在双方政府商定的区域和期限内进行的旅游活动

D.时间较短,不需要具备亲友提供的担保,最长时间15天。

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