已知⊙O的直径为4cm,则⊙O的面积为______,周长为______.

题型:填空题

问题:

已知⊙O的直径为4cm,则⊙O的面积为______,周长为______.

考点:点、线、面、体圆的认识
题型:填空题

阅读理解

     Some time ago I discovered that one of my chairs had a broken leg. I didn't think there would be any

difficulty in getting it mended, as there are a whole lot of antique (古董) shops near my home. So I left

home one morning carrying the chair with me. I went into the first shop expecting a friendly reception.  I

was quite wrong.  The man wouldn't even look at my chair.

     The second shop,  though slightly more polite,  was just the same,  and the third and the fourth- so I

decided that my approach must be wrong. I entered the fifth shop with a plan in my mind.  I placed the

chair on the floor and said to the shopkeeper,  "Would you like to buy a chair?" "Twenty pounds," I

said.  "OK,"he said. "l'll give you twenty pounds." "It's got a slightly broken leg," I said.  "Yes, I saw that.  

It's nothing."

     Everything was going according to the plan and I was getting excited.  "What will you do with it?" I

asked.  "Oh, it will be easy to sell once the repair is done. " "I'll buy it," I said.  "What do you mean?

You've just sold it to me," he said.  "Yes,  I know but I've changed my mind.  I am sorry. I'll give you

twenty-seven pounds for it."  " You must be crazy," he said. Then, suddenly the penny dropped.  "I

know what you want. You want me to repair your chair."

     "You're right," I said.  "And what would you have done if I had walked in and said,   'Would you

mend this chair for me?'" "I wouldn't have agreed to do it," he said.  "We don't do repairs, not enough

money in it and too much trouble.  But l'll mend this for you.  Shall we say for a fiver?" He was a very

nice man and was greatly amused by the whole thing.

1. We can learn from the text that in the first shop the writer___.

A. was rather impolite

B. was warmly received

C. asked the shopkeeper to buy his chair

D. asked the shopkeeper to repair his chair

2.  The underlined word "approach" in the second  paragraph means___.

A. plan for dealing with things

B. decision to sell tings

C. idea of repairing things

D. way of doing things

3. The expression "the penny dropped" in the last paragraph means the shopkeeper____.

A. changed his mind

B. accepted the offer

C. saw the writer's purpose

D. decided to help the writer

4. How much did the writer pay?

A.  5.

B.  7.

c.  20.

D.  27.

5. From the text, we can learn that the writer was___.

A. honest

B. careful

C. smart

D. funny

题型:填空题

丰子恺是我国著名的漫画家,图是他的作品《生机》,该作品对我们个人成长的启示是

①既要对自己的前途充满信心,又要准备走曲折的道路

②要重视量的积累抓住时机促成飞跃

③要充分发挥主观能动性,在砥砺自我中走向成功

④要努力创造矛盾,实现自身的发展

A.①②

B.①④

C.③④

D.①③

题型:填空题

计算机控制系统的硬件一般有哪几大主要组成部分?各部分是怎样互相联系的?其中过程通道有几种基本类型?它们在系统中起什么作用?

题型:填空题

C++中,派生类继承了基类的全部数据成员和除 【14】 之外的全部函数成员。

题型:填空题

潜水艇的工作原理是(  )

A.改变自身的体积大小

B.改变自身的压强大小

C.改变自身的浮力大小

D.改变自身的重力大小

更多题库