正弦波振荡电路只要满足正反馈条件,就一定能够振荡。

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问题:

正弦波振荡电路只要满足正反馈条件,就一定能够振荡。

考点:无线电装接工考试初级无线电装接工初级无线电装接工题库
题型:判断题

两球相向运动,发生正碰,碰撞后两球均静止,于是可以判定,在碰撞以前(   )

A.两球的质量相等

B.两球的速度大小相等

C.两球的动量大小相等

D.以上都不正确

题型:判断题

以下关于电子商务对组织结构变化的影响作用的说法正确的是()。

A.电子商务可以转移很多企业对垂直一体化的注意力

B.网络型的组织结构不适合于信息密集的高技术行业

C.电子商务可以改善信息的流动、协调不同的活动、降低交易成本

D.电子商务的广泛采用可能会使等级制组织回归到基于市场的结构

E.电子商务可以使那些依赖信息共享的网络组织更容易建设和维护

题型:判断题

阅读理解。

     What can help you make a fortune in the future? Graduating from a top university might not be

enough. A new study from the University of Essex in Britain has shown that the more friends you

have in school, the more money you'll earn later.

     The idea that popularity could have a serious impact on one's earning potential shouldn't come

as too much of a surprise. The researchers noted that if you want to get ahead in life, social skills

and networking are easily as powerful as talent and hard work.

     "If a person has lots of friends, it means that he or she has the ability to get along with others in

all kinds of different situations," said Xu Yanchun, 17, from Nantou High School in Shenzhen, who

totally agreed with the recent finding. "Also, friends always help each other. They not only create

wider social circles for you but lift your mood when you occasionally feel depressed," said Xu.

She believed that all this helps you "earn a higher salary".

     Maybe that's why some people think the younger generations are in the age of friendaholism

(交友狂症). A woman even complained that the networking website Facebook's 5,000friend

limit was too low for her large reserve of social contacts.

     But what does a friend mean? Should friends be regarded as a form of currency?

     "Call me uncool, but I think of a friend as an actual person with whom I have an actual history

and whom I enjoy actually seeing. It seems, however, that this is no longer the definition(定义)of

'friend'," said Meghan Daum, who works with The Los Angeles Times in the US.

     Daum despised(鄙视)the idea that quantity trumps(胜过)quality in the age of friendaholism. She

thought the idea of friendship, at least among the growing population of Internet social networkers,

was to get as many of notreallyfriends as possible. For example, a friend might be someone you

might know personally but who could just as easily be the friend of a friend of some other Facebook

friends you don't actually know.

1.What's the main idea of the passage?

A.Making friends is important.

B.Making friends makes you earn more money.

C.Friends give you success.

D.Social skills are important.

2.Which of the following sentences is TRUE?

A.It is surprising that making more money is popular with people.

B.If you want to win in life, social skills are as important as talent and hard work.

C.The young now have friendaholism.

D.Friends do not create your wider social circles but lift your mood when you occasionally feel

depressed.

3.What's the opinion of Xu Yanchun about making friends?

A.Making friends may help you a lot in your life.

B.Making friends can get a lot of money.

C.Making friends can make you work hard.

D.Making friends can improve your ability to work.

4.What's the author's attitude?

A.Objective.  

B.Subjective.

C.Neutral.  

D.Optimistic.

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金卡VIP客户可享受的服务包括()

A.委托代办

B.预约办理

C.全国机场/火车站绿色通道

D.免保证金开通国际漫游(长途)

E.3G终端优先试用

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