光源平均亮度1000~20000cd/m2的直接型灯具最小遮光角为()。 A.10°

题型:单项选择题

问题:

光源平均亮度1000~20000cd/m2的直接型灯具最小遮光角为()。

A.10°

B.15°

C.20°

D.30°

考点:电气工程师(供配电)照明照明题库
题型:单项选择题

B型带轮的槽口宽为()。

A、23

B、17

C、14

题型:单项选择题

阅读理解。

     Games originally are entertainment. Contemporary games are very realistic and for this reason they are

a source of great experience for the player and develop the imagination. Games are entertainment and even

more than that. The statistics (统计) of the New York University led by Green claim that the player

preferring active games get improvement of some types of brain activity. In particular, game players deal

with problems of simultaneously (同时地) tracking several moving objects at the average level of 30%

better than people who do not play active computer video games. The "gaming" violent experience may not

be the cause of violent behavior in reality. None of the playing experience will become the priority in making

important decisions concerning problems in real life. A game is an abstraction (虚拟物). A player gets

abstract tasks and acts according to abstract rules.

     Games are also the possibility to be however a person wants to be and to rest from the outside world for

some time. But what if a person gets so much excited with the game scenes that he becomes violent in reality?

Then, it proves that the games cause people to become violent in reality. But a psychologically healthy person

will never confuse these two different worlds. A game is a virtual world with visual images very similar to

human. These images represent by themselves nothing but playing obstacles (障碍). A game may potentially

give the opportunity to "destroy the obstacles" that may not be destroyed according to the rules but it is more

about personal choice whether to do it or not. This leads us to the conclusion that violence is not a

consequence but the cause. People who are originally trended to violence may get into a temper by games and

perform violence in the "real world". But in this case violence in games is a simple justification (理由) of the

violent nature of the player.

1. The passage is _____. [ ]

A. a story

B. a descriptive writing

C. an argumentative writing

D. a scientific essay

2. In the first paragraph the author used the statistics to prove that _____.[ ]

A. games can provide experience for the players

B. games can help develop players' imagination

C. games can cause violent behavior

D. games are more than entertainment

3. What is the author's attitude towards the "computer games"? [ ]

A. "Violent games" can lead to the performance of violence in the real world

B. Violence is not a consequence of the "computer games" but the cause

C. Games are just entertainment and nothing more.

D. The virtual world and the real world are just the same.

4. The best title for this passage is _____. [ ]

A. Violent games cause violence

B. Games: good or bad?

C. The cause of violence

D. The consequence of games

题型:单项选择题

关于法规清理说法不正确的是()。

A.不包括“新制定”

B.不限于一定的领域

C.对象是已经成效的法律

D.一国两制必需法律清理

题型:单项选择题

替泥浆已达到设计量,但仍未碰压,如何处理?

题型:单项选择题

作为人体健康十大标准之一,WHO提出的口腔健康标准的具体内容不包括

A.牙齿排列整齐

B.没有龋洞

C.牙齿清洁

D.牙龈颜色正常

E.牙齿没有痛感

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