出现火警时，应该如何使用灭火手柄？

阅读理解。

     I learned about life from an ant farm. When I was seven years old, my family created one. First, we

put clean sand in a thin glass box, and then we waited for the live ants to arrive. Shortly after the chilly

ants were dropped into the glass structure, they got to work making tunnels. I was amazed that each one

knew exactly what to do. After hours of staring, I realized that the ants had assigned jobs. With my

mom ' s help, I kept a diary of what happened each day and named the ants.

      One day a tragedy struck the ant farm. The pages of the diary, still wrinkled where tear drops fell,

indicate the depth of the tragedy.' I had put my face so close to the structure that I accidentally tipped it

over, caving in all the tunnels. Although the ants survived their earthquake, one by one they began to die.

I was terrified as I watched them give up their tunnel-building to carry the bodies to a comer of the farm. My mother reported that the ants were dying of "frustration." They simply could not stand the reality that

their tunnels had been destroyed.

       Although much time has passed, I still think of that ant farm. Mom had hoped it would teach me

about the natural world, but it taught me much more. Over the years, I came to realize the ants were a

study in the benefits of teamwork. Working together, they were able to create an amazing world for

themselves. I also learned that they should be admired for their hard work. Day in and day out, each

labored at their task. The ant farm showed that teamwork and perseverance are indeed two key

ingredients to success. But there was an even larger lesson that I did not realize until recently: Adversity (不幸、灾祸) is a natural part of life, and must be accepted. Unlike the ants, humans cannot give up

when they face disappointment. Unlike the ants, we have to realize that if a tunnel caves in, we just have

to build another. Giving up, I say, is not a choice.

1. The family created an ant farm in a glass box because it was easy _____.

A. for the ants to live in            

B. to get sun light in

C. to keep the sand clean            

D. for the boy to observe

2. What made the pages of the diary wrinkled?

A. The tears.      

B. The earthquake     

C. The ants.  

D. The tragedy.

3. What did the writer finally realize? 

A. Perseverance is the only way to success.

B. Humans cannot give up when facing adversity.

C. People should admire anyone for their hard work.

D. His mother taught him much more.

4. When did the writer draw a more important lesson from his experience?

A. Before he was seven years old.      

B. When he was seven years old.

C. Immediately after the tragedy.        

D. Many years after the tragedy

甲状腺腺瘤囊性变囊内出血()
甲状腺腺癌()

A．131I放射性同位素扫描为热结节

B．A型超声诊断结节内有2cm液平段

C．BMR测定为－15

D．甲状腺结节质硬，不规则，移动度差

E．突眼

写作。

     假设你是王平，李华是你的同窗好友，请根据下列要点，用英文给李华写一篇毕业留言。

     要点：1. 简要表述李华在你心目中的印象；　　　　 

               2. 用一到两个相关的事例进行具体描述；　　　　

               3. 对他李华表示美好的的祝愿。　

     注意：1. 内容积极向上，语意连贯，结构完整。词数120左右。 

               2. 不能写成诗歌形式；不能使用真实姓名和学校名称。

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头发遇热会变形，烫发、染发、吹塑不会伤害头发的质地。

以下关于更新图块属性中字段的说法错误的是（）。

A.可以使用updatefield命令更新

B.可以在“增强属性编辑器”对话框中更新

C.可以设置系统变量fieldeval的值为16，在重生成图形时更新

D.设置fieldeval的值为0，则图块属性中字段不能进行更新