在膨胀岩土地区进行铁路选线时,以下()不符合选线原则。() A.线路宜在地面平整,植

题型:单项选择题

问题:

在膨胀岩土地区进行铁路选线时,以下()不符合选线原则。()

A.线路宜在地面平整,植被良好的地段采用浅挖低填方式通过

B.线路宜沿山前斜坡及不同地貌单元的结合带通过

C.线路宜避开地层呈多元结构或有软弱夹层的地段

D.线路宜绕避地下水发育的膨胀岩土地段

考点:岩土工程专业知识第六章特殊条件下的岩土工程第六章特殊条件下的岩土工程题库
题型:单项选择题

教学技能是教师在已有经验基础上,通过练习实践和反思体悟形成的一系列()

A.教学行为方式

B.心智活动方式

C.教学行为方式和心智活动方式

D.操作活动方式

题型:单项选择题

阅读理解

     The Channel is the name given to the stretch(伸展) of water which separates England and France.

Ferries(轮渡) operate all year round to carry people across the Channel, and they are busy most of the

year. January is the only quiet month nowadays. As well as summer holiday-makers, there are day trippers and coach traffic, not to mention lorries and other commercial vehicles. Some ferries carry cars and their

passengers, while others also connect train passengers with the continental rail network.

     The biggest hazard for the ferry is the wind. The crew listens to BBC weather reports four times a day. Or they sometimes get gale(wind) warnings from local radio station.

     Crossing the Channel by ferry is a bit like trying to cross Oxford Street on a busy afternoon, according to one ferryboat captain. The ferries from Folkstone and Dover to Calais and Boulogne have to cross the main flow of traffic. This consists of ships traveling through the Channel to and from Northern Europe.

There may be four hundred ships making the journey at any one time, and they all pass through a "choke

point" which is only fifteen miles (twenty-five kilometers) wide. The cross-channel ferries have to sail right

through the middle of all this traffic.

1. The passage is mainly concerned with _____.

A. cross-channel ferries

B. the weather on the Channel

C. the English Channel

D. what crossing the Channel by ferry is like

2. You may find the Channel not so busy on __________.

A. May 1st

B. February 25th

C. January 2nd

D. September 5th

3. The word "hazard" is closest in meaning to ________.

A. friend

B. danger

C. enemy

D. safety

4. We can infer(推断) from the passage that _______.

A. if there is a gale warning from the BBC, the ferries will stop operating.

B. the traffic on the Channel is very busy only in winter

C. ferries are busiest in the afternoon

D. the crew of the ferry listens to the weather reports four times a day

5. Where does this passage most probably appear?

A. In a dictionary.

B. In a novel.

C. In a transportation magazine.

D. In a geography textbook.

题型:单项选择题

“三要”、“四心”、“五主动”的内容是什麽?

题型:单项选择题

饱和硫酸铜参比电极的电极棒应为纯度99.7%的()铜棒。

A.黄

B.青

C.紫

D.红

题型:单项选择题

在作功冲程中,活塞从上止点移动到下止点,这期间进排气门始终闭。

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