问题 单项选择题

某土石围堰高70m,堰基为深厚覆盖层,厚度达60m,上部为现代冲积砂砾石层,中部为淤泥质粘土,下部为较密实的砂卵砾石层,混凝土拱坝坝基开挖时形成深基坑,下例哪一选项是堰基防渗墙处理后可能存在的主要工程地质问题?()

A.淤泥质粘土层的压缩和不均匀变形,沿淤泥质粘土滑动变形

B.粘性土与砂砾石层接触带冲刷

C.砂砾石层的渗漏

D.砂砾石层的渗透变形

答案

参考答案:B

解析:淤泥质粘土层不容易被压缩和产生不均匀变形,下部砂卵砾石层由于较密实,也不容易发生渗漏和渗透变形,而粘性土层与砂砾石层接触带由于颗粒性状不同,容易发生接触带冲刷。

阅读理解

For most people, the word “fashion” means “clothes”. But people may ask the question, “What clothes are in fashion?” And they use the adjective “fashionable” in the same way: 

“She was wearing a fashionable coat. His shirt was really a fashionable color.”

But of course there are fashions in many things, not only in clothes. There are fashions in holidays, in restaurants, in films and books. There are even fashions in school subjects, jobs…and in languages.

Fashions change as time goes. If you look at pictures of people or things from the past, you will see that fashions have always changed. An English house of 1750 was different from one of 1650. A fashionable man in 1780 looked very different from his grandson in 1860.

Today fashions change very quickly. Some of this is natural. We hear about things much more quickly than in the past. Newspaper, radios, telephones and television send information from one country to another in a few hours. New fashions mean that people will buy new things, so you see there is money in fashion.

小题1: From this passage we know that “fashion” means ______.

A.clothes

B.many things

C.most of the popular things

D.everything小题2:Today fashions change very quickly because _______.

A.people read newspaper every day

B.radios send information from one country to another

C.new things that people like are often shown on TV

D.people quickly learn what is happening in the world小题3:“There is money in fashion” means ______.

A.clothes are expensive

B.money comes from fashion

C.people like new things

D.fashions make big money小题4: The best title for the passage is ______.

A.Fashions

B.Fashion mean clothes

C.Fashion means money

D.A fashionable

问答题 简答题