问题 单项选择题

丹毒的病理变化为()

A.皮下疏松结缔组织中急性弥漫性化脓性炎症

B.皮下淋巴管、淋巴结的化脓性炎症

C.多个相邻毛囊和皮脂腺的化脓性炎症

D.皮肤和粘膜中表浅网状淋巴管急性炎症

E.单个毛囊和皮脂腺的急性化脓性炎症

答案

参考答案:H

解析:

丹毒是皮内淋巴管网受乙型溶血性链球菌感染所致。而急性蜂窝织炎是皮下疏松结缔组织的急性感染,可发生在任何部位,病情进展快。

阅读理解

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.

单项选择题 案例分析题