图示单口网络的功率因素为() A.0.8 B.0.707 C.-0.6 D.0.6

题型:单项选择题

问题:

图示单口网络的功率因素为()

A.0.8

B.0.707

C.-0.6

D.0.6

考点:电路分析电路分析题库
题型:单项选择题

关于药典叙述正确的是( )

A.反映了国家药物生产、医疗和科技的水平

B.药典每隔几年要修订一次

C.具有法律约束力

D.2010年版药典三部收载了放射性药品

E.收载疗效确切的药物

题型:单项选择题

患者男,72岁,因“恶心、呕吐2d,意识不清3h”来诊。患者有糖尿病病史4年,不规则服用二甲双胍、格列奇特等治疗,余无特殊。查体:T36.5℃,P110次/min,BP80/50mmHg;浅昏迷,深大呼吸;皮肤、黏膜干燥,四肢湿冷;双肺无湿性啰音;双下肢无水肿。

为明确诊断必须立即进行的检查项目包括()

A.血糖

B.血气分析

C.电解质

D.血常规

E.血乳酸

F.心肌酶谱、心电图

G.尿常规

题型:单项选择题

大多数员工能用日语写报告。

题型:单项选择题

阅读理解

    Researches have suggested that your gameplaying habits and TV watching inspire you to act out, but

those who enjoy killing people on screen disagree with the result.  "I have played the most violent games

available on the market today, "writes Mateo,   15.  "I don't go killing people or stealing cars because I

see it in a game.  My parents say that,   as long as I remember it's a game,   I can play whatever I want. "

      Despite what they say,   many scientific studies clearly show that violent video games make kids more

likely to yell,   push,   and punch,   says Brad Bushman,   a psychologist at the University of Michigan in

Ann Arbor.  Bushman and his colleagues recently reviewed more than 300 studies of video media effects

and said,   " We included every single study we could find on the topic.  Regardless of what kids say,  

violent video games are harmful. "

      TV has been around a lot longer than video games,   so researchers have more data on the longterm

effects of violent TV shows on people than they do on the effects of violent video games.  Scientists at

the University of Michigan recorded the TVwatching habits of hundreds of first and third graders in

1977.  Fifteen years later,   the researchers looked at what kind of adults these kids had become.  By

the time they were in their early twenties,   women who had watched violent shows as kids were four

times as likely to have punched,   choked,   or beaten other people as were women who didn't watch

such programs as kids.  Boys who watched violent TV grew up to be three times as likely to commit

crimes as boys who didn't watch such programs.  But that doesn't mean that everyone who watched

violent programs ended up being violent themselves.  It was just more likely to happen for some people.  

1.  Which of the following about Mateo is TRUE?

A. He doesn't go killing people or stealing cars in a game.  

B. He works in a market.  

C. His parents allow him to play violent games as long as he regards it as a game.  

D. He agrees that gameplaying habits and TV watching inspire one to act out.  

2.  Researches show ________.  

A. violent TV shows have more bad effects on people than violent video games

B. women are more likely to punch,   choke or beat other people

C. boys who watched violent programs ended up being violent themselves

D. both violent TV shows and violent video games are harmful

3.  According to the passage,   we students________.  

A. had better watch violent TV shows than play violent games

B. should try to control our behaviors after playing violent games

C. should give up the habits of watching violent shows and playing violent games

D. should keep away from those watching violent programs in case they commit crimes

4.  From the passage,   we can infer that________.  

A. everyone who watched violent programs ended up being violent themselves

B. Brad Bushman is against violent video games

C. government has taken measures to stop violent shows and games

D. TV has been around a lot longer than video games

题型:单项选择题

任何电气设备上的标志牌,除()人员或()人员外,其他任何人员不准移动。

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