胃大部切除术后，餐后上腹部饱胀，伴呕吐物既含胆汁，又有食物A．急性完全性输入段梗阻

“If you want to see a thing well, reach out and touch it!”

That may seem a strange thing to say it. But touching things can help you to see them better. Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how smooth and cool the ball is. You can feel how heavy the glass is. When you feel all these about the ball, you really see it. With your skin, you can feel better. For example, your fingers can tell the difference between two coins in your pocket. You can feel a little drop of water on the back of your hand, too. You can even feel sounds against your skin. Have you ever wanted to know why some people like very loud music? They must like to feel the sounds of music.

All children soon learn what “Don’t touch!” means. They hear it often. Yet most of us keep on touching things as we grow up. In shops, we touch things we might buy: food, clothes. To see something well, we have to touch it. The bottoms of our feet can feel things, too. You know this when you walk on warm sand, cool grass or a hard floor. All feel different under your feet.

There are ways of learning to see well by feeling. One way is to close your eyes and try to feel everything that is touching your skin. Feel the shoes on your feet, the clothes on your body, the air on your skin. At first, it is not easy to feel these things. You are too used to feel them!

Most museums are just for looking. But today some museums have some things to touch. Their signs say, “Do touch!” There you can feel everything on show.

If you want to see better, reach out and touch. Then you will really see!

小题1:When people buy things in shops, they often _____.

A．try them on first

B．keep their right hands on them

C．ask about them

D．feel and touch them小题2: Why does it say “At first, it is not easy to feel these things”? because ______.

A．the things are used by people, too

B．people feel the things too often

C．people know how to use the things

D．the things are easy to feel小题3: Which of the following is true?

A．Touching is helping us to see better.

B．Our feet, fingers, hands and skin can help us buy food.

C．People have to learn to see by feeling as they grow up.

D．Visitors can feel the things on show in some museums.小题4:Which of the following can be the best title of the story?

A．Touching by Feeling.

B．To See or to Feel?

C．To See Better-Feel

D．Ways of Feeling.

门是往外开的里面一个人用10牛顿的力垂直推门，外面一个人用5牛顿的力垂直拉门，则两人对门的作用力的合力为 [ ]

A、5牛，垂直向外

B、15牛顿，垂直向外

C、5牛，垂直向里

D、15牛顿，垂直向里

阅读下列短文，完成文后的题。

       谁也无法描绘出他的面目。但世界上处处能听到他的脚步。

       当旭日驱散夜的残幕时，当夕阳被朦胧的地平线吞噬时，他不慌不忙地走着，光明和黑暗都无法改变他进行的节奏。

       当蓓蕾在春风中灿然绽开湿润的花瓣时，当婴儿在产房里以响亮的哭声向人世报到时，他悄无声息地走着，欢笑不能挽留他的脚步。

       当枯黄的树叶在寒风中飘飘坠落时，当垂危的老人以留恋的目光扫视周围的天地时，他还是沉着而又默然地走，叹息也不能使他停步。

       他从你的手指缝里流过去。

       从你的脚底下滑过去。

       从你的视野和你的思想里飞过去.....

       他是一把神奇而又无情的雕刻刀，在天地之间创造着种种奇迹，他能把巨石分裂成尘土，把幼苗雕成大树，把荒漠变成城市和园林，当然，他也能使繁华之都衰败成荒凉的废墟，使锃亮的金属爬满绿锈、失去光泽。老人额头的皱纹是他刻出来的，少女脸上的红晕也是他描绘出来的。生命的繁衍和世界的运动正是由他精心指挥着。

       他按时撕下一张又一张日历，把将来变成现在，把现在变成过去，把过去变成越来越遥远的历史。

       他慷慨。你不必乞求，属于你的，他总是如数奉献。

       他公正。不管你权重如山、腰缠万贯，还是一个布衣、两袖清风，他都一视同仁。没有人能将他占为己有，哪怕你一掷千金，他也决不会因此而施舍一分一秒。

       你珍重他，他便在你的身后长出绿阴，结出沉甸甸的果实。

       你漠视他，他就化成轻烟，消散得无影无踪。

       有时，短暂的一瞬会成为永恒，这是因为他把脚印深深地留在了人们心里。

       有时，漫长的岁月会成为一瞬，这是因为浓雾和风沙湮没了他的脚印。  （选自《中华活页文选》）

1．这篇文章告诉我们应该怎么样？

     答：                                                                                                              

2．文中横线上的句子运用了什么修辞手法？有何作用？

     答：                                                                                                            

3．综观全文，说说光阴有哪些特性？

     答：                                                                                                            

4．理解下列句子的含义。你珍重他，他便在你的身后长出绿阴，结出沉甸甸的果实。

     答：                                                                                                            

5．读了这篇文章，你一定有些感想，简要写出来。

     答：                                                                                                            

课程内容的活动取向特别注重（）

A、课程内容的科学逻辑组织

B、课程与社会生活的联系，强调学生在学习中的主动性

C、课程是外在于学习者的，并且基本上凌驾于学习者之上的——学习者服从课程，在课程面前是接受者的角色

D、课程是既定的、先验的、静态的

残髓炎最有价值的诊断指征为（）

A.X线检查

B.电测试

C.温度测试

D.病史

E.去除原充填物检查患牙根管深处有无疼痛