按操作系统中文件的性质与用途分，文件分为：【5】、库文件和用户文件。

下列食物含锌最丰富的是（）

A.牡蛎肉

B.牛奶

C.蛋黄

D.海参

E.香菇

     Send us your joke, anecdote or story, and if we publish it in the magazine, we'll pay as follows:

     My Story$ 500

     Personal stories beyond the call of daily life. They must be unpublished, original and less than 1,000

words. Click here to read more stories.

     Kindness of Strangers up to $ 250

     True accounts of good karma, inspiring acts for unexpected kindness and generosity, or just

something someone did that made your day different or changed your life. 100-500 words. Click here

to read more stories.

     Anecdotes and Jokes $ 50－$ 250

     Funny things can happen at work or at home, especially when kids are around to pass comment.

We may run your writing in Life's Like That, All in a Day's Work or As Kids See It, or as a short filler.

Got a new joke? Send it in for Laughter, the Best Medicine.  Click here to read more jokes.

     Send Us Your Punchline(妙语)

     Do you think of yourself as a bit of a jokester? See if you can come up with punchline to this month's

joke. . .

     You Said It

     If you'd like to comment on something you saw in Reader's Digest magazine or on this website, this is the place to do it!

     Is It Just Me

     Can you be humorous about the trials and mysteries of modern life?Get it off your chest in 500 words. Click here to read more stories.

1. This passage is written to ________.

A. offer some wonderful stories to readers

B. encourage people to write something

C. show that making money is not difficult

D. remind people that life is full of joy

2. The underlined word "karma" is closest in meaning to " ________ ".

A. wish      B. explanation

C. luck  D. imagination

3. Which of the following statements is true according to the passage?

A. The magazine is mainly intended for entertainment.

B. The more words you write, the more money you get.

C. Anecdotes and Jokes isn't paid much attention to.

D. New jokes can be sent in for Life's Like That.

4. Where can you most probably see this passage?

A. In a library.  

B. In a magazine.

C. In a storybook.  

D. On a website.

洋务运动中，清政府决定选幼童赴美留学。詹天佑的父亲詹作屏出具的保证书写道：“兹有子天佑，情愿送赴宪局带往花旗国肄业学习技艺，回来之日听从差遣，不得在国外逗留生理。倘有疾病，生死各安天命。”这则材料主要说明

A．派遣留学生向西方学习只是个人行为

B．清政府依然实行闭关自守的对外政策

C．清政府认识到 * * 问题的严重性

D．清政府依然具有极强的落后意识

下列哪项不属于用大承气汤急下的理由（）

A.燥实势急

B.遏止亡阴

C.保存阴液

D.防止传变

E.燥屎已成

主视图所在的投影面称为（），简称正面，用字母（）表示，俯视图所在的投影面称为（），简称水平面，用字母H表示。左视图所在的投影面称为侧立投影面简称侧面，用字母W表示。