下列哪一项不是鼻咽部活检术的适应证？() A．鼻咽部息肉 B．鼻咽癌 C．鼻咽慢性感

综合利用下列哪些资源属于可以并网发电的项目?

A.余热余压 

B.垃圾 

C.煤层气 

D.煤矸石

How could we possibly think that keeping animals in cages in unnatural environments---mostly for entertainment purposes --- is fair and respectful?

Zoo officials say they are concerned about animals. However, most zoos remain “collections” of interesting “things” rather than protective habitats. Zoos teach people that it is acceptable to keep animals bored, lonely and far from their natural homes.

Zoo claims to educate people and save endangered species, but visitors leaves zoos without having learned anything meaningful about the animals’ natural behaviour, intelligence, or beauty. Zoo keeps animals in small spaces or cages, and most signs only mention the species’ name, diet, and natural range. The animals’ normal behavior is seldom noticed because zoos don’t usually take care of the animals’ natural needs.

The animals are kept together in small spaces, with no privacy and little opportunity for mental and physical exercise. This results in unusual and self-destructive behavior called zoochosis. A worldwide study of zoos found that zoochosis common among animals kept in small spaces or cages. Another study showed that elephants spend 22 percent of their time making repeated head movements or biting cage bars and bears spend 30 percent of their time walking back and forth, a sign of unhappiness and pain.

Furthermore, most animals in zoos are not endangered. Captive breeding (圈养繁殖) of endangered big cats, Asian elephants, and another species has not resulted in their being sent back to the wild. Zoos talk a lot about their captive breeding programs because they do not want people to worry about a species dying out. In fact, baby animals also attract a lot of paying customers. Haven’t we seen enough competitions to name baby animals?

Actually, we still save endangered species only if we save their habitats and put an end to the reasons people kill them. Instead of supporting zoos, we should support groups that work to protect animals’ natural habitats.

小题1:How would the author describe the animals’ life in Zoos?

A．Dangerous

B．Unhappy

C．Natural

D．Easy小题2:In the state of zoochosis, animals _______________.

A．remain in cages

B．behave strangely

C．attack other animals

D．enjoy moving around小题3:According to the passage what point of view does the author hold?

A．Zoos are not worth the public support.

B．Zoos fail in their attempt to save animals.

C．Zoos should treat animals as human beings.

D．Zoos use animals as a means of entertainment.小题4:The author tries to persuade readers to accept his argument mainly by________.

A．pointing out the faults in what zoos do

B．using evidence he has collected at zoos

C．exploring the way animals are protected

D．discussing the advantages of natural habitats小题5:Although he argues against zoos, the author would still agree that___________.

A．zoos have to keep animals in small spaces

B．most animals in zoos are endangered species

C．some endangered animals are reproduced in zoos

D．it’s acceptable to keep animals away from their habitats

一患者缺失，间隙正常，银汞充填体，已作牙髓治疗，位置正常，与下颌对牙的覆覆盖关系正常，以下修复设计中最合理的是（）

A.双端固定桥

B.粘结固定桥

C.单端固定桥

D.直接作可摘局部义齿

E.全冠修复后制作可摘局部义齿修复

传染病中最凶险的是（）。

A.SARS

B.鼠疫

C.狂犬病

D.AIDS

E.霍乱