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问题 选择题

中国在新旧世纪交替之际，提出了一个全面的战略方向，就是要发展中国特色社会主义先进文化，我们要继承传统的优秀文化，克服不适应时代的落后文化。之所以要发展中国特色社会主义先进文化主要是因为[ ]

A、其内容丰富多彩

B、它能发挥强有力的导向和示范作用

C、其形式多种多样

D、它站在历史和现实的交汇点上

答案

答案：B

单项选择题

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.
Grimsvotn is one of the largest active volcanoes in Europe. What makes Grimsvotn different is that it lies under a huge glacier(冰川) of ice up to 12 meters thick. The hot volcano heats up the ice above it, which then forms a layer(M) 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 Rifts. The lava(岩浆) from the volcano then comes up to the surface. This is exactly what has 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 or the sharp objects.

What makes Grimsvotn different from other volcanoes

A．It is below ice.

B．It lies under the sea.

C．It is the largest volcano.

D．Its lava affects the airlines.
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单项选择题

The nurse is working in a support group for clients with acquired immunodeficiency syndrome (AIDS). Which point is most important for the nurse to stress

A．Avoiding the use of illicit drugs and alcohol.

B．Refraining from telling anyone about the diagnosis.

C．Following safer-sex practices.

D．Telling potential sex partners about the diagnosis, as required by law.
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