在我国经济快速增长的同时，产能过剩在钢铁、水泥等行业显现。推动这些行业的调整和优

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Farley worked for the Canadian government. One day, he was    1    to learn more about wolves. Do wolves kill lots of caribou(big animals)? Do they kill people?                They gave him lots of food and clothes and guns. Then they put him on a plane and took him to    2   . The plane put him down and went away. There were no houses or people in this place, but there were lots of animals and lots of wolves.      People tell terrible stories about wolves. They say wolves like to kill and eat people. Farley remembered these stories, and he was    3   . He had his gun with him    4   .      Then one day, he saw a group of wolves. There was a mother wolf with four baby wolves. A father wolf and another young wolf lived with them.      Farley watched these wolves every day. The mother was a very    5    mother. She gave milk to her babies. She gave them lessons about life. They learned how to    6    food. The father wolf got food for the mother. The young wolf    7    the children. They were a nice, happy family-a wolf family. Farley did not need his    8    any more. In a short time, he got on well with the wolf family. Farley watched them for five months. He learned many new things about wolves. He learned that many stories about the wolves were    9   . Wolves do not eat people, and they do not eat many large animals. And he also learned bad things about men. It was men who killed many caribou and wolves.      Later, Farley wrote a book about wolves. He wanted people to    10    them and not to kill them.
( )1. A. seen         ( )2. A. a small town ( )3. A. afraid       ( )4. A. at times     ( )5. A. bad         ( )6. A. cook         ( )7. A. shouted at   ( )8. A. food         ( )9. A. not good     ( )10.A. grow	B. told         B. a big city   B. happy       B. all the time B. good         B. make         B. looked into B. clothes     B. not true     B. have	C. heard       C. a far place C. angry       C. once a week C. hungry     C. get         C. laughed at C. gun         C. not easy   C. teach	D. soun d           D. a lonely village D. tired           D. every afternoon D. thirsty         D. pick             D. played with     D. plane           D. not clear       D. understand

They will lose the game    they try their best,

A．unless

B．once

C．since

D．after

流动资产的现金估算的计算公式为（）。

A．

B．

C．

D．

该病人首要的护理措施是

A．氧气吸入

B．保持呼吸道通畅

C．防止脑水肿

D．防止外伤

E．防止继发感染

阅读材料，回答问题

材料一：

世界人口估算

材料二：

中国古代社会人口估算

材料三：

“高宗（乾隆皇帝）谕内阁曰：‘……承平日久，生齿日繁，盖藏自不能如前充裕……生之者寡，食之者众，……朕甚忧之。犹幸朕临御以来，辟土开疆，幅员日廓，小民皆得开垦边外地土，籍以暂谋衣食。然为之计及久远，非野无旷土，家有赢粮，未易享生平之福。”——《清史稿》

材料四：

明清之际，中国人口快速增长，出现过剩人口。……主要集中在江南地区，为应付严峻的生计问题，……不得不从副业生产中寻找生活的出路。这一地区种植棉花和从事棉纺织业，就是以副养农、以副助农的一种选择。——《中华文明史》

结合所学知识分析材料一中世界人口在1400年至1650年急剧增长的原因。