In relation to defences in the tort of neg

医疗单位必须作为目标管理的重要内容，衡量和评价一个单位工作的好坏的重要标准是( )

A．医德医风建设

B．医院经济效益

C．成本核算

D．管理经营水平

E．医疗技术水平

阅读短文。完成27～31题。 

金属历来都是通过采矿、冶金制取的，可是80年代初期，科学家发现在聚乙炔中加入强氧化剂或还原剂后，它的导电性能大大提高。因为这种塑料具有金属的一般特性，所以人们称它为“人造金属”。近年来，它的发展极为神速，人们又先后研制成功了聚苯乙炔、聚苯硫醚和聚双炔类等。这种人造金属不仅具有金属光泽，还能导电传热，其用途十分引人瞩目。 

“人造金属”最奇特的功能是它的导电性。与普通塑料不同的是，“人造金属”塑料具有一种独特的线型结构，许多同样的分子能奇妙地结合起来，并带有较多的“自由”电子，这就使原来的塑料改变了物理性能，能够导电。它的导电率比铜、银还要高。普通金属的导电性，随着温度的降低而增大，在接近绝对零度时成为超导，但这种低温度很难得到。而人造金属却相反，随着温度升高，外围“自由”电子释放越来越多，因此导电性增大，在常温下呈现出超导电性能。实现超导，由低温变成常温，这是人造金属创造的一大奇迹，是科学家梦寐以求的目标，用超导体制造的发电机，它的效率可以从30%提高到98%，超导电线将使远距离无损耗输电的设想成为可能，使火车悬浮在轨道上高速运行，也将使有控热核聚变反应成为现实，最终解决能源问题。人造金属的另一突出贡献是，用它制成的新型电池代替笨重、硕大的铅蓄电池，可以使人们长期用蓄电池作为汽车动力有了（）①的可能。人造金属电池可提供相当于常规电池10倍的电力，不需要维修，充电次数可达1000次以上，使用寿命比铅蓄电池长4～5倍，而且不会污染环境。 

人造金属在外压和光的作用下，能产生电磁效应，把它装在扩音器上，能将声音放大；把它放在红外摄像机上，在红外热能作用下，也能产生工作电流进行录像。此外，人造金属弹性大、易加工、重量轻、耐磨蚀性能好、强度高、成本低。

下列判断正确的一项是（）。

A．“人造金属”完全可以取代普通金属

B．“人造金属”的制取带来了金属制造业的革命

C．“人造金属”的主要经济效益是导电性强

D．“人造金属”可以创造新能源

在一系列视频投影仪产品中， 【8】 是CRT投影仪与液晶光阀相结合的产物。

B

Brazil is a federation that consists of twenty-six states and one federal district. The biggest majority of Brazil’s population belongs to the Christian religion and almost all of them are Catholics. This is something Brazil inherited(继承) being Portugal’s colony(殖民地).

Historically, the country was a colony claimed by people from Portugal and this made Portuguese the official language. The Portuguese reached Brazil in 1500 and until that moment it was inhabited by semi-nomadic(半游牧的) people. The Portuguese changed Brazil into a country of slaves until 1800, when Maria I of Portugal came to live to Brazil. The Queen did not stay long in Brazil, but during the 20 years of royal presence a lot of changes occurred: commercial ports to United Kingdom were opened; Brazil stopped being isolated(孤立) from other countries. So at the moment of getting the independence on the 7th of September, 1822, Brazil already had the potential to develop. The Brazilian Empire, Pedro I, abolished slavery in 1888 in the face of Princess Isabel. A lot of European people started coming to Brazil and the industry of the country started working. In the 19th and the 20th century as it has been said above foreign people immigrated(移民) to Brazil and basically 5 million European and Japanese people became the residents of Brazil. The beginning of the 20th century was especially marked by the immigration of a lot of Asian people: Japanese, Korean and Chinese immigrants. As a matter of fact Japanese people do not immigrate a lot, and the fact that the Brazilian-Japanese people are the largest Japanese minority in the world does astonish greatly.

The majority of the cultural inherits of Brazil are actually Portuguese, due to the fact that Brazil was Portugal’s colony for a very long time. The southern states mainly consist of European population and the north and the northeast consist of a mixed population including Africans, Amerindians and Europeans. Most of this population is Roman Catholic. No other country in the world has the same amount of Catholics. The modern tendency of Brazil is the growing number of people calling themselves Protestants. Around 7.4% of the population don’t believe any god. Some Brazilians, especially in the northern states are mixed Africans who prefer following the traditional African religions. Only 1.8% of the population chose Buddhism, Islam or Judaism.

Though Brazil always tried to maintain democracy, it was failed several times by the dictatorship（独裁） of Getulo Vargas. This fact could not affect the political situation in the country.

61. Brazil was ruled by Portuguese about ______.

A. 22 years        B. 300 years      C. 322 years       D. 328 years

62.Who might block the development of Brazil?

A. Maria I     B. Pedro I     C. immigrants    D. Getulo Vargas

63. The writer mainly tells us the ______ of Brazil in the passage.

A. religion     B. history     C. culture    D. political situation

64．Which of the following statements is NOT true?

A. Brazil was isolated from other countries when Maria I stayed there.

B. The industry of the country started working in 1888.

C. Brazil has the largest population of Catholics in the world.

D. Some people in Brazil don’t believe any god.

65. It can be inferred that Brazil is a country with ________.

A. western culture B. modern culture   C. traditional culture   D. mixed culture

“运费”栏应填（）。

A．502/500/2

B．502/500/1

C．502/500/3

D．500