简述流量整形技术。

阅读理解。

There once lived in Greece a learned man. He was so well known for his wide knowledge of almost everything that lots of people from all over the country came to learn things from him. The great man taught his students whole-heartedly and answered their questions with great patience. (耐心)     One day a student asked him, "My dear teacher, didn't you say you yourself have many, many more questions about things than we do? On the contrary (恰恰相反), we students have far more than you."     With a smile, the teacher drew two circles-one as large as a big wheel (轮子), the other smaller.     "Of course, I've learned much more. But a teacher does not necessarily have fewer questions than his students. Now look at these two cricles. Within the big one is my knowledge of things, and within the smaller one yours. Out of the cricles is what is still unknown to us. Since mine is larger, the line that marks out (划……的界限) the circle is longer. That means I have more chances to face what is still unknown. And that's why I myself have more questions than you do. The more you learn, the more questions you have. You will never learn enough, you know."

1. One of his students didn't agree that ______.

[ ]

A.the teacher should have so many questions B.the teacher had more questions than the students C.the students had more questions than the teacher D.the teacher had as many questions as the students

2. Which of the following pictures tells rightly what the teacher drew?

[ ]

A. B. C. D.

3. The teacher drew two circles in order to show ______.

[ ]

A.he knew a lot and was good at drawing B.how one could get more knowledge C.why he had more questiones than the students D.what the students learned had something to do with the circles

4. The passage mainly tells us that ______.

[ ]

A.we should learn from a learned man B.we'll never learn enough C.a teacher should be patient D.it is never too old to learn

5. The teacher was very famous for______.

[ ]

A.his patience B.the drawing of two circles C.his help to tire students D.his knowledge

g

电阻是导体本身的一种______，它的大小与导体两端的电压和通过的电流大小______．

下表是近l0年来中国内地企业进入世界500强榜单的相关数据。

	国有及国有控股企业(家)	股份制企业(家)	私营企业(家)
2002	11	O	O
2011	53	2	2

            注：股份制企业不包括国有控股企业。

数据表明，我国

A．股份制经济成为经济发展的主导力量    

B．非公有制企业实力普遍增强

C．已形成一批具有国际竞争力的大型企业  

D．国有经济成为经济制度基础

关于合同转让，下列说法错误的是( )。

A．转让合同权利、义务约定不明确的，视为未转让

B．合同的转让可以从中牟利

C．一般采用书面形式签订转让合同

D．可以将权利和义务一并转让

骨与关节结核的治疗，下列哪项最为重要（）

A.手术治疗

B.局部治疗

C.卧床休息

D.石膏固定

E.全身治疗