氨基糖苷类药物在体内分布浓度较高的部位是（） A.细胞内液 B.血液 C.耳蜗内淋巴

关于大洲和大洋的说法，正确的是

A．北美洲是西半球上最大的洲

B．非洲是东半球上最大的洲

C．北冰洋全部在南半球

D．南极洲全部在北半球

Some people are pessimistic(悲观的)when they think about the future. They say that, a hundred years from now, we will have used up most of the earths resources. We will have made our seas so dirty that we will not be able to eat fish from them. There will be so many people in the world that we will have to use all the countryside for housing; there will be no farmland left.

Other people have a different idea about the future. In their view, the city of the future will be a huge pyramid-shaped(金字塔形的) building, which will be floating on the surface of the sea. About 5,000 families will live there, and there will also be schools, shops in it.

In a hundred years’ time, people will not need to use oil. They will heat their homes with power from the sun.

Think of space. Perhaps a station will be set up on the moon; people will be able to visit the moon as tourists. They may even spend their holidays in space, travelling from planet to planet.

What an interesting picture!

Many people don't think about the future. “I don't care. I’ll be dead. ”they say. But it is our duty to care because the world of a hundred years’ time will be the world of our children’s and their children after them.

小题1:How many viewpoints are discussed here about the future?

A．Two

B．Three

C．Four

D．Five小题2:In the pessimistic view, people will         in a hundred years ’time.

A．have to use power from the sea

B．have to live on the moon

C．be able to grow food on the sea

D．find it difficult to live on the earth小题3:Where will people live in the future in the optimistic view?

A．On the moon

B．On the sea

C．In pyramids

D．On other planets小题4:The writer of the article seems to agree        .  

A．with those who look at the bright side of the future

B．with those who take a pessimistic view about the future

C．with those who won’t trouble their heads about the future

D．to none of these viewpoints

关于牙釉质龋，以下哪项是错误的

A．平滑面龋早期表现为灰白色不透明区

B．早期病损脱矿主要发生在表层

C．窝沟龋的损害性质与平滑面龋相同

D．微晶的溶解可从晶体的中央开始

E．扫描电镜下见病损区釉柱间隙和晶体间微隙均增宽

材料的导热系数值小，则材料的绝热性越好。

广义的认知心理学也包括______学派。