主要发生脂肪变性的器官是()A．心 B．肝 C．脾 D．肺 E．肾

Look at the photo of a boy. Do you know who he is? Many Chinese people know him very well now. His name is Lin Hao. He is only nine years old now, but he can save his two partners during the earthquake in Sichuan on May 12, 2008. He carried his two partners with his weak back at that dangerous time. And they got nothing about his parents then. His fourteen-year-old sister took them away and walked seven hours difficultly. At last, they got to Du Jiangyan City safely. He was very calm when he appeared in the picture of the reporter’s cameral. Just as his brave behavior, we are all moved. And he was named “Ten Little Heroes during the Earthquake” by CCTV.

At the same time, another nine children were named “Ten Little Heroes during the Earthquake” by CCTV. Lei Chunian, a 15-year-old child, is a middle school student. He did not run out when the earthquake happened, instead he ran into the classroom and found his seven classmates were sitting at the corner of the classroom. He took them away at once. On the half way, he found there were only six. At that very dangerous time, he ran back to the classroom again. He found a girl crying there because of fearing. He asked her to run away quickly. But she was too afraid to move. So he carried her and ran out of the classroom. A few seconds later, the building fell down and they were all safe.

Let’s remember all these little heroes for ever. They are Ren Dong, Ning Jiaci, Dong Yupei, Liu Li, Tang Fuwen, Kang Jie, Zhou Wen, Yin Quankui and Zhu Hualin. We should learn their spirit of helping others during the dangerous time. Among them, Liu Li and Zhou Wen lost their lives. Zhou Wen is a Tibet (藏族) girl.

(   ) 1. Lin Hao saved ________ during the earthquake on May 12, 2008.

A. one boy       B. one girl      C. two partners of his   D. two teachers of his

(   ) 2. We all moved by little Lin Hao because he was _______ when he appeared in the picture of the reporter’s camera.

A. brave         B. angry        C. frightened          D. calm and brave

(   ) 3. Lei Chunian didn’t _______ when the earthquake happened.

A. run out        B. wake up     C. go to school         D. stand up

(   ) 4. _______ and _______ lost their lives among these ten little heroes.

A. Lei Chunian; Lin Hao           B. Liu Li; Zhou Wen 

C. Kang Jie; Tang Fuwen            D. Dong Yupei; Zhou Wen

(   ) 5. Lei Chunian ran back to the classroom because one of his classmates was ______ in the corner of the classroom because of fearing.

A. sleeping       B. crying        C. reading              D. lying

算出下面三角形中∠3的度数并判断三角形的种类。

（1）∠1=27°，∠2=53°，∠3=（    ），这是一个（    ）角三角形。

（2）∠1=70°，∠2=50°，∠3=（    ），这是一个（    ）角三角形。

（3）∠1=42°，∠2=48°，∠3=（    ），这是一个（    ）角三角形。

如果a-3b=-3，那么代数式5-a+3b的值是[ ]

A.0

B.2

C.8

D.12

血流动力学改变示左心房、右心房、肺循环、右心室血量增多，而左心室、体循环血号减少时的先天性心脏病可能是（）

A.房间隔缺损

B.室间隔缺损

C.动脉导管未闭

D.法洛四联症

E.肺动脉狭窄

正常脑脊液中可见到什么细胞?