How many key comparisons are needed in sea

阅读理解。

     Steven Jobs, the designer (设计者) of Apple Computer, was not clever when he was in school.

At that time, he was not a good student and he always made troubles with his schoolmates. When he

went into college, he didn't change a lot. Then he dropped out (退学).But he was full of new ideas.

After he left college, Steven Jobs worked as a video game designer. He worked there for only several

months and then he went to India. He hoped that the trip would give him some new ideas and give him

a change in life.   Steven Jobs lived on a farm in California for a year after he returned from India. In 1975, he began to make a new type of computer. He designed the Apple Computer with his friend in his garage (汽车库). He chose the name "Apple" just because it could help him to remember a happy summer he

once spent in an apple tree garden. His Apple Computer was such a great success that Steven Jobs

soon became famous all over the world.

1. Steven Jobs was not a good school because he _____.

A. never did his lessons

B. was full of new ideas

C. always made troubles with

D. dropped out

2. Steven Jobs didn't finish college, did he? _____.

A. Yes, he did

B. No, he didn't

C. Yes, he didn't

D. No, he did

3. Steven Jobs designed his new computer _____.

A. in India

B. with his friend

C. in an apple tree garden

D. by himself

4. Steven Jobs was famous' for his _____ all over the world.

A. new idea

B. apple

C. Apple Computer

D. video games

5. From this passage we know _____.

A. Steven Jobs didn't finish his studies in the college because he hated his schoolmates

B. Steven Jobs liked travelling in India and California

C. Steven Jobs liked trying new things and making his new ideas become true

D. Steven Jobs could only design video games

在进行单相负荷换算时，一般采用（）。

A.需要功率

B.设备功率

C.线间负荷和相负荷

D.计算功率

国家电网公司成立于（）。

A.2001年12月29日；

B.2002年10月29日；

C.2002年12月29日；

D.2003年12月29日。

弹簧式安全阀弹簧的力量是通过松紧（）来调整。

A.提升手柄

B.调整螺丝

C.阀芯

D.弹簧压盖

下列不属于表达式语句的是( )。

A．++i;

B．--j;

C．b#a;

D．b*=a;