何谓水平传播和垂直传播?

题型:问答题 简答题

问题:

何谓水平传播和垂直传播?

考点:医学临床三基(医技)医学微生物和免疫学医学微生物和免疫学题库
题型:问答题 简答题

初步诊断最可能是

A.原发性甲亢

B.单纯性甲状腺肿

C.继发性甲亢

D.桥本甲状腺炎

E.亚急性甲状腺炎

题型:问答题 简答题

阅读理解。

     Nowadays people are troubled by the violence that spreads throughout the media. Movies, television and

video games are full of gunplay and bloodshed, and one might reasonably ask what's wrong with a, society

that presents videos of violence as entertainment.

     Viewing large amounts of violent television and video games may well contribute to violent behavior in

certain individuals. The trouble comes when researchers downplay uncertainties in their studies or overstate

the case for causality (因果关系). Skeptics (怀疑论者) were dismayed several years ago when a group of

societies including, the American Medical Association tried to end the debate by issuing a joint statement,"

At this time, well over l,000 studies... point to a causal connection between media violence and aggressive

behaviors (攻击性行为) in some children."

     Freedom-of-speech advocates accused the societies of appealing to politicians, and even disputed the

number of studies (most were review articles and essays, they said). When Jonathan Freedman, a social

psychologist at the University of Toronto, reviewed the literature, he found only 200 0r so studies of television-

watching and aggression. And when he weeded out "the most doubtful measures of aggression", only 28%

supported a connection.

     The critical point here is causality. The alarmists say they have proved that violent media cause aggression.

But the assumptions behind their observations need to be examined. When labeling games as violent or non-

violent, should a hero eating a ghost really be counted as a violent event? And when experimenters record the

time it takes game players to read "aggressive" or "non-aggressive" words from a list, can we be sure what

they are actually measuring? The intention of the new Harvard Center on Media and Child Health to collect and

standardize studies of media violence in order to compare their methodologies, assumptions and conclusions

is an important step in the right direction.

     Another appropriate step would be to tone down the criticism until we know more. Several researchers

write, speak and testify quite a lot on the threat posed by violence in the media. That is, of course, their

privilege. But when doing so, they often come out with statements that the matter has now been settled,

drawing criticism from colleagues. In response, the alarmists accuse critics and news reporters of being

deceived by the entertainment industry. Such clashes help neither science nor society.

1. Why is there so much violence shown in movies, TV and video games?

A. There is a lot of violence in the real world today.

B. Something has gone wrong with today's society.

C. Many people are fond of gunplay and bloodshed.

D. Showing violence is thought to be entertaining.

2. What is the skeptics' view of media violence?

A. Violence on television is a fairly accurate reflection of real- world life.

B. A causal relationship exists between media and real-world violence.

C. Most studies overstate the effect of media violence on the viewers.

D. The influence of media violence on children has been underestimated.

3. The author uses the term "alarmists" to refer to those who _____.

A. use standardized measures in the studies of media violence

B. insist on a direct link between violent media and aggressive behavior

C. initiate the debate over the influence of violence media on reality

D. use appropriate methodology in examining aggressive behavior

4. What does the writer think of the debate concerning the relationship between the media and violence?

A. He more than agrees with the views held by the alarmists.

B. It should come to an end since the matter has now been settled.

C. The past studies in this field have proved to be misleading.

D. More studies should be conducted before conclusions are drawn.

题型:问答题 简答题

固定桥倾斜牙做基牙,其倾斜度的最大限度是()。

A.40°

B.30°

C.20°

D.10°

E.5°

题型:问答题 简答题

诉讼原则

题型:问答题 简答题

有雷电活动的日子,包括看到电闪和听到雷声,都称为()。

更多题库