问题 单项选择题

矩形基础底面尺寸为l=3m,b=2m,受偏心荷载作用,当偏心距e=0.3m时,其基底压力分布图形为()。

A.一个三角形

B.矩形

C.梯形

D.两个三角形

答案

参考答案:C

解析:

据《建筑地基基础设计规范》(GB 50007—2002)5.2.1条,e=0.3m,b/6=2/6= 0.33m,e<b/6。所以

因为e<b/6,所以

即pkmin>0,所以基底压力分布图形为梯形。

阅读理解

阅读理解。

     Canada is a very large country. It is the second largest country in the world. By contrast it has a very small

population. There are only about 29 million people there. Most Canadians are of British or French origin, and

French is an official language of Canada as well as English. About 45%of the people are of British origin, that

is, they or their parents or grandparents, etc, come from British. Nearly 30%are of French origin. Most of the

French-Canadians live in province of Quebec.

     Over the years, people have come to live in Canada from many countries in the world. They are from many

countries in the world. They are from most European countries and also from China, besides other Asian

countries.

     However, Canada was not an empty country when the Europeans began to arrive. Canadian Indians lived

along the coast, by the rivers and lakes and in forests. Today, there are only about 350 000 Indians in the

whole country, with their own languages. In the far north live the Inuit. There are only 27 000 Canadian-Inuit.

Their life is hard in such a difficult climate.

1. About ____ live in Quebec. [ ]

A. 30% of the French-Canadians

B. 45% of the Canadians

C. 29 000 000 people

D. 8 700 000 French -Canadians

2. The official languages of Canada are ____. [ ]

A. English and Chinese

B. French and English

C. Indian and French

D. Chinese and Inuit

3. The word "origin" in the passage means ____. [ ]

A. 血统

B. 后裔

C. 先驱

D. 猿人

4. About 23% of people came from ____. [ ]

A. China

B. England

C. France

D. some other countries except France and Britain

5. Which of the following is true according to this passage? [ ]

A. There are 27 000 Canadian-Indians in Canada.

B. More than 13 million people have come from Britain and France recent years.

C. There are 30% of the population whose parents or grandparents come from France.

D. There are no people when the Europeans began to arrive in Canada.

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