设z=yx，则=（）。 A. xyx-1lnx B. yx-1(x+lny) C.

河北省简称（　　）

A．冀

B．豫

C．晋

D．京

Many people go to school for an education. They learn languages, history, politics, geography, physics, chemistry and mathematics. Others go to school to learn a skill so that they can make a living. School education is very important and useful. Yet, no one can learn everything from school. A teacher, no matter how much he knows, can not teach his students everything they want to know. The teacher’s job is to show his students how to learn. He teaches them how to read and how to think. So, much more is to be learned outside school by the students themselves.

It is always more important to know how to study by oneself than to memorize some facts or a formula(公式). It is actually quite easy to learn a certain fact in history or a formula in mathematics. But it is very difficult to use a formula in working out a math problem. Great scientists before us didn’t get everything from school .Their teachers only showed them the way. Edison did not even finish primary school. But they were all so successful. They invented so many things for mankind. The reason for their success is that they knew how to study. They read books that were not taught at school . They would ask many questions as they read. They did thousands of experiments. They worked hard all their lives, wasting not a single moment. Above all , they knew how to use their brain.

小题1: To work out a math problem, you need to know __________.

A．only a certain formula

B．how to memorize some facts

C．only some facts

D．the method to work it out小题2: Why were many scientists so successful?

A．They received good education.

B．They were very clever.

C．They knew how to learn.

D．They learned lots of facts and formulas.小题3:How did great scientists study?

A．They read a lot of books and asked many questions while reading.

B．They did thousands of experiments.

C．They always worked hard and never wasted time.

D．All of the above.

甲企业在市场上推出一种多功能遥控器，名为“一按达”，产品设计成适应操作者手型的曲线外观，并配以反传统的香槟色。该多功能遥控器销售地区甚广，辅之大量的较长时间的广告宣传，使其在相关市场广为消费者欢迎。乙企业仿冒甲企业的产品，也在市场推出“易安达”多功能遥控器，其外观、色彩与甲企业的“一按达”相仿，引起混淆。乙企业的行为属于？

A.假冒、仿冒他人注册商标

B.擅自使用知名商品特有的名称、包装、装潢

C.侵犯他人外观设计专利权

D.引人误解的虚假宣传

据预测，2008年GDP增速将有所回落，预计可保持接近11%的水平。人们能预测未来的经济形势，这表明（）

A.意识对物质具有决定作用

B.人能够能动地认识世界

C.意识能够能动地改造世界

D.不怕做不到，就怕想不到

普通股股东行使资产收益权时，受到法律和其他方面的条件限制，其中其他方面的限制包括（）。

A．公司的经营环境

B．公司对现金的需要

C．股东所处的地位

D．公司进入资本市场获得资金的能力