通信系统安装总配线架，用吊锤检查之列的垂直，上下相差应小于多少距离？（） A.1mm

The more books you read, the better your life will be. If you don’t believe me, please consider the following reasons to read more books.

You will have strong brain power .Studies suggest reading makes you smart. Unlike watching television, which requires no thought process（过程）, reading is an active learning experience that will keep your mind sharp (even in old age). 　　

You will travel to a new world .　Sometimes our daily life can start to get boring . At times like this, I like to dive into a good fiction book, where I can forget about whatever problems are stressing me out. I’ll come back refreshed after my mini-vacation to a fresh and exciting place in the world of words. 　　

You will improve your vocabulary .　The more words you’re able to use, the better you will become at expressing your thoughts and feelings. I couldn’t imagine how I would write articles like this if I didn’t actively aim to improve my vocabulary, because using the same few words to express myself would get awfully boring in a hurry. 　

You will entertain yourself at a low price .If you’re looking for entertainment without much money, reading is your best choice. Thanks to the popularity of electronic reading devices(设备), it’s never been easier to entertain yourself for hours at a time, for the low cost of a few dollars.

You will discover surprising new ideas.　　Reading introduced me to concepts （概念）like mindful eating, relaxation exercises, and the importance of loving yourself. If I didn’t read, I wouldn’t realize these ideas. If you don’t read, you will miss many surprising new ideas.　　

You will become an expert（专家） in your field .　Don’t you think reading articles and books by experts in your field might make you better at what you do? If you don’t learn more about your profession, then your lack of passion could be a sign that you’re in the wrong field. 　　

I firmly believe that reading has changed my life . I hope these reasons can encourage you to read more books.

小题1:How many reasons are mentioned in the passage?

A．five

B．six

C．seven

D．eight小题2:What kind of books does the writer read when he feels bored?

A．science book

B．fiction book

C．history book

D．story book小题3:Which of the following is NOT ture according to the passage?

A．Reading is an active learning experience.

B．Electronic reading devices make it easier to entertain yourself at a high price.

C．If you don’t read, you will miss many surprising new ideas.

D．The writer firmly believes that reading has changed his life .小题4:From the passage we know that ___________________.                               

A．Studies suggest watching TV makes you smart.

B．The fewer words you’re able to use, the better you will express yourself.

C．The more books you read, the better your life will be.

D．Reading won’t change your life.小题5:What’s the purpose of the writer in the passage?

A．He wants to travel to a new country.

B．He wants to become a reporter.

C．He wants to find a good job.

D．He wants to encourage readers to read more books.

加工中心按主轴的方向分为立式和卧式外，还有用于精密加工的（）构造加工中心。

A、单柱型；

B、组合型；

C、龙门型；

D、模块型。

在麦克斯韦速率分布律中，速率分布函数f(v)的意义可理解为( )。

A．速率大小等于v的分子数
B．速率大小在v附近的单位速率区间内的分子数
C．速率大小等于v的分子数占总分子数的百分比
D．速率大小在v附近的单位速率区间内的分子数占总分子数的百分比

工伤事故的伤害程度可为分三类：轻伤、（）和死亡。