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阅读理解。

     Have you ever spoken or acted before the public? Have you got stage fright c怯场)? Many people

have such an experience but they feel differently about it.  Some are just a little nervous,  others become

dizzy (眩晕 WJ).  It's hard to tell why these feelings happen.  Anyway, stage fright is a common problem and you can overcome (克服) it. To overcome stage fright you need to do lots of work.  It takes time.  

But it will pay off in  . the end. The first step is facing the fact you have stage fright. Then what? Here are

somc steps toward a speaking success story.

     Soon you have to give a speech in class.  But you are worried about it.  What should you do?

      * Try practicing at home.  Then,  even if you become nervous, at least your opening sentences will

be right.

      * Before you go on stage,  try listening to relaxing music or breathing deeply.  This may help you

feel better.

      * Dress smartly.  This will give you confidence.

      * Once you are up on stage,  pick out the most friendly face in the audience.  Look into the person's

eyes from time to time and speak as if you are talking directly to that person.

        * Write down the key points of your speech on small cards.  But don't hold your notes in your

hand.  Put them on a table near you instead.

        * If you are trembling,  stand against a table or move your legs and move about a little.

根据短文内容 ,判断句正  (T)误  (F) .

( ) 1. Many people have the experience of stage fright and they feel the same about it.

( ) 2. It's very easy to overcome stage fright and it doesn't take a long time.

( ) 3. Listening to relaxing music or breathing deeply before you go on stage may help  you feel better.

( ) 4. When you are on stage, it's not right to look into any other person's eyes.

( ) 5. Dressing smartly is also important to get a speaking success story.

用高压锅煮食物时，因为高压锅良好的密封性，使水蒸气不易外泄而增大了锅内气压，提高了水的_________，从而提高水温，所以容易煮熟食物。伯努利原理告诉我们：流体在流速大的地方压强___________。如图1所示，用吸管从瓶子中吸饮料时，是_________的作用使饮料上升到嘴里。如图2所示，新鲜的鸡蛋放在水中会下沉。如果向水中加盐并轻轻搅拌，鸡蛋会_________，这一现象说明：________________。

                                                               图1                        图2

男，27岁，7天来全身皮肤出血点伴牙龈出血来诊。化验Plt35×10/L，临床诊断为慢性特发性血小板减少性紫癜（ITP）。

该患者的首选治疗是（）。

A.糖皮质激素

B.脾切除

C.血小板输注

D.长春新碱

E.达那唑

数据类型是( )。

A) 字段的另一种说法
B) 决定字段能包含哪类数据的设置
C) 一类数据库应用程序
D) 一类用来描述Access表向导允许从中选择的字段名称

基本养老保险规定：新招职工以起薪当月工资收入作为缴费工资基数。