患者男性，45岁，大面积（85%）烧伤后第3天，行躯干及四肢切痂异种皮覆盖术，既往无

我国环境复杂，有海洋、湖泊、雨林、草原、沙漠、梯田…，这体现了（　　）

A．物种多样性

B．遗传多样性

C．生态系统多样性

D．生活环境多样性

阅读理解。

     I suddenly heard an elephant crying as though frightened. Looking down, I immediately recognized that

something was wrong, and ran down to the edge of the near bank. There I saw Ma Shwe with her three-

month-old calf struggling in the fast-rising water and it was a life-and-death struggle. Her calf was floating

and screaming with fear. Ma Shwe was as near to the far bank as she could get, holding her whole body

against the rushing water and keeping the calf pressed against her huge body. Every now and then the rushing

water would sweep the calf a way.

     There was a sudden rise in the water and the calf was washed clean over the mother's body and was

gone. Ma Shwe turned quickly to reach it and pressed the calf with her head and trunk (象鼻) against the

rocky bank. Then with a huge effort she picked it up in her trunk and tried until she was able to place it on

a narrow shelf of rock

     Just at this moment she fell back into the river. If she were carried down, it would be certain death. I

knew as well as she did, that there was one spot (地点) where she could get up the bank, but it was on the

other side from where she had put her calf

     While I was wondering what I could do next, I heard the sound of a mother's love. Ma Shwe had crossed

the river and got up the bank and was making her way back as fast as she could roaring (吼叫) all the time

but to her calf it was music.

1. The moment the author got down to the river bank he saw ____.

A. the calf was about to fall into the river

B. Ma Shwe was placing the calf on the rock

C. the calf was washed away by the rising water

D. Ma Shwe was holding the calf against the rushing water

2. How did Ma Shwe manage to save her calf from the fast-flowing water?

A. By putting it on a safe spot

B. By pressing it against her body

C. By taking it away with her

D. By carrying it on her back

3. How did the calf feel about the mother elephant's roaring?

A. It was a great comfort

B. It was a sign of danger

C. It was a call for help

D. It was a musical note

4. What can be the best title for the text?

A. A Mother's Love

B. A Brave Act

C. A Deadly River

D. A Matter of Life and Death

科目三道路驾驶技能和安全文明驾驶常识考试满分分别为100分，成绩分别达到80和90分的为合格。

占女性恶性肿瘤第一位的是：

A．卵巢癌
B．子宫内膜癌
C．肺癌
D．乳腺癌
E．胃癌

对于负荷较大而又相对集中的大型民用建筑中的高层建筑高压配电，除底层、地下层外，可根据负荷分布将变压器设在( )。

A．首层
B．顶层
C．中间层
D．地下一层