问题 单项选择题 A3/A4型题

15岁男性,于半月前突然惊叫一声,倒在地上,双眼上翻,四肢抽搐,面色青紫,历时约5分钟逐渐清醒,醒后未述不适。5年前曾有类似发作一次。1周前脑电图检查为正常。神经系统检查无异常。

发作未能控制的可能原因包括下列几项,但除外()

A.发作类型判断错误,导致用药不当

B.药量不够

C.不正规用药

D.难治性癫痫

E.一开始没有联合用药物

答案

参考答案:B

单项选择题
阅读理解

阅读理解。

     A volcanic eruption in Iceland has sent ash across northern Europe. Airlines have stopped or changed the

flights across the Atlantic Ocean, leaving hundreds of passengers stuck in airports.

     Grirmsvom is one of the largest and most active volcanoes in Europe. What makes Grimsvom different

is that it lies under a huge glacier (冰川) of ice up to 12 maters thick. The hot volcano heats up the ice above

it, which then forms a layer (层) of water between the glacier and the volcano. This layer of water puts

pressure on the volcano, keeping it stable. As the water flows out from under the glacier, the pressure lifts.

The lava (岩浆) from the volcano then comes up to the surface. This is exactly what happened today.

     Now, airlines have to make changes to their flights so as not to fly through the clouds of volcanic ash.

According to KLM. one of Europe's biggest airlines, airplanes cannot go under the cloud or over it. Going

through the cloud can result in ash getting stuck in the airplane's engines, causing damage to the plane.

     The eruption has also caused problems for animals in Iceland. The volcano left ash and sharp. Glass-like

rocks all over the countryside. Farmers are keeping their animals inside to stop them from eating ash-covered

grass to the sharp object.

1. What makes Grimsvom different from other volcanoes?

A. It is below ice

B. It lies under the sea

C. It is the largest volcano

D. It is lava affects the airlines

2. What keeps Grimsvotn still?

A. The slow flow of water

B. The low water temperature

C. The thick glacier

D. The water pressure

3. Which of the following is the result of the volcanic eruption?

A. People stop traveling in Europe

B. Airlines suffer from the loss of planes

C. It becomes dangerous for animals to eat outside

D. Farmers have lost many of their animals

4. This text is most probably taken from _____. 

A. a research paper

B. a newspaper report

C. a class presentation

D. a geography textbook.