解下列一元二次方程 (1)x2+3x-4=0(公式法) (2)2x2-4x-1=

题型:解答题

问题:

解下列一元二次方程

(1)x2+3x-4=0(公式法)

(2)2x2-4x-1=0(公式法)

考点:一元二次方程的解法
题型:解答题
下列各组词语中与所给注音全都相同的一组是
[ ]
A.散sǎn漫  散落  兵游勇  装饼干
B.丧sàng  失  钟  权辱国  魂落魄
C.落luò  户  差  大大落  拓不羁
D.冠guān    树  冕堂皇  状动脉
题型:解答题

阅读理解。

     Children are a secret weapon for making investment decisions. In a nod to the wisdom of

youth, many wealthy and well-educated technology investors are seeking advice and investment

tips from their children, summer interns(实习生) and twenty something receptionists.

     Unlike the formal consumer tests that focus groups at large companies, these inquiries are taking

place closer to home, with friends and family. But their impact can be broad, because investors not

only help promote the development of new ideas but also invest billions of dollars in those ideas on

behalf of investment groups and wealthy individuals.

     These investors say there is a good reason to ask young people to help them assess new technology:

as the investors themselves are aging, the technology ----including social networking websites and

mobile gadgets- is designed for, used by and sometimes built by people half their age.

     And the trend may indicate the rise of something new in the venture capital industry itself. The

investors said asking the younger people for advice would have been unheard of in the dot-boom of

the 1990s. Then, investors were engaged themselves in the very technology they were financing, ordering

books on Amazon, downloading music from Napster and buying and selling on eBay. But now, in the

so-called Web 2.0 era, investors' personal interests have strayed away from new innovation: websites

like Myspace intended to connect people, free Internet calling tools like Skype or software for mobile

phones.

     And people now in junior school and high school have spent their lives with technology. " This is the

first generation for whom the computer is a native language," said Jim Gauer, managing director of

Palomar Ventures, a Los Angeles firm. " We are all going to have to get re-educated and learn that

language."

     Or they can do what Palomar have done: hire a native speaker . Last summer, the firm had an

intern, Adam Gottesfeld, 21, who was heading into his senior year at Princeton. Mr Gottesfeld so

impressed the firm with his technological knowledge that it has offered him a job as an associate when

he graduates.                     

1. What is the passage mainly about?                                          

A. Investors have difficulty in making wise decisions to make money.          

B. The young will perform better than today's investors in terms of making dec

C. Investors have turned to the young to generate new ideas and test their deci

D. Children with impressive technology knowledge can become investors themselve

2. About those technology investors, which of the following statements might    

A. They are falling behind present technology compared with the younger generat

B. They often conduct some consumer test in large corporations and companies.  

C. They were once the pioneers of new technology in the 1990s.                

D. They have realized the importance and potentiality of the younger generation

3. We can learn from the passage that         .                              

A. the younger generation has long been regarded as investment consultant.    

B. the young today are speaking a different kind of language today.          

C. the young equipped with advanced technological knowledge may find promising

D. many investors will learn from the young advanced computer technology.    

4. According to the passage, we could do all the things today EXCEPT        

A. communicating and connecting with people regardless of border on the Intern

B. downloading music and copyrighted books on the websites.                  

C. buying and selling goods on the Internet.                                  

D. Installing software on the mobile phones.   

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焦炉煤气的爆炸极限为()%。

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简述预防地面水淹井事故。

题型:解答题

根据我国民法的规定,法人的法定代表人是根据( )产生的。

A.法律规定或法人章程规定

B.主管机关指派

C.法人章程的规定

D.法律规定

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