矿山安全技术矿山瓦斯检测实际上是指( )检测。 A．甲烷 B．乙炔 C．二氧化碳

Monty Robert’s father was a horse trainer. As a child, Monty often went from one farm to another with his father. Sometimes they didn’t have enough money to pay for food, but Monty still kept hoping to own a horse farm.

When he was in school, his teacher asked him to write a paper about his dream. He wrote a seven-page paper. He wanted to have a horse farm one day. He even drew a picture of a horse farm in the paper.

The next day he handed it in to his teacher. Two days later, he got his paper back. On the front page was a large red “F” with the words “See me after class”. So the boy did and asked his teacher:” Why did I get an F?” The teacher said: “This dream will not come true for a young boy like you. You need a lot of money to own a horse farm. You have to buy the land. You have to pay for a lot of things. There is no way you could ever do it.” Then the teacher added: “If you write this paper

again with a simpler dream, I will give you a good grade.”

After school he thought hard about it. At last, he decided to hand in the same paper, making no changes at all. He wrote: “You can keep the F and I’ll keep my dream.”

Many years later, Monty had his own large horse farm. His dream came true.

So don’t let anyone take away your dreams. Follow your dreams, no matter what they are.

小题1:From Paragraph1, we learn that _______.

A. Monty’s family was poor

B. Monty’s father didn’t support him

C. Monty hoped to be a horse trainer

小题2:What did his teacher ask him to do when he was in school?

A. To write a seven-page paper.

B. To draw a picture about his dream.

C. To write a paper about his dream.

小题3:What was Monty’s attitude 态度 towards his paper?

A. Careless. B. Serious. C. Funny.

小题4:Monty’s teacher gave him a red “F” because he thought ______.

A. Monty’s handwriting was too bad

B. Monty copied from another student

C. Monty’s dream was too hard for him to achieve

小题5:What does the story want to tell us?

A. Follow a simple dream.

B. Never give up your dream.

C. Don’t take away others’ dreams.

大城公司与小龙公司订立合同，规定大城公司应于2002年3月1日交货，小龙公司应于同年3月7日付款。2月底，大城公司发现小龙公司财产状况恶化，无支付货款之能力，并有确切证据，遂提出中止合同，但小龙公司未允。基于上述因素，大城公司于3月1日未按约定交货。依据合同法原理，有关该案的正确表述是：

A．大城公司有权不按合同约定交货，除非小龙公司提供了相应的担保

B．大城公司无权不按合同约定交货，但可以要求小龙公司提供相应的担保

C．大城公司无权不按合同约定交货，但可以仅先交付部分货物

D．大城公司应按合同约定交货，如小龙公司不支付货款可追究其违约责任

分布式数据库系统不具有的特点是______。

A．分布式

B．数据冗余

C．数据分布性和逻辑整体性

D．位置透明性和复制透明性

物流信息系统开发的原则有（）

A、领导参加的原则

B、优化与创新的原则

C、充分利用信息资源的原则

D、实用和实效的原则

对于MD11飞机，起飞备降场的距离不应超过：（）.

A.以正常巡航速度1小时的航程

B.静风条件下，以单发巡航速度1小时的航程

C.静风条件下，以单发巡航速度2小时的航程

D.静风条件下，1小时的航程