为了美化环境,淮北市加大对绿化的投资.2010年用于绿化投资100万元,2011

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问题:

为了美化环境,淮北市加大对绿化的投资.2010年用于绿化投资100万元,2011年至2012年用于绿化投资共260万元,求这两年绿化投资的年平均增长率.设这两年绿化投资的年平均增长率为x,根据题意所列方程为(  )
A.100x2=260B.100(1+x2)=260
C.100(1+x)2=260D.100(1+x)+100(1+x)2=260
考点:一元二次方程的应用
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“孔雀开屏”属于  [ ]

A.觅食行为学习行为

B.防御行为先天性行为

C.繁殖行为先天性行为

D.攻击行为学习行为

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50米跑步比赛,小亮的成绩是11秒,小强的成绩是9秒,______跑得快.

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Saturday, October 7th, was a marathon of sad tasks for Anna Politkovskaya. Two weeks earlier, her father, a retired official in the department of foreign affairs, had died of a heart attack as he emerged from the Moscow Metro while on his way to visit Politkovskaya’s mother, Raisa Mazepa, in the hospital. She had just been diagnosed(诊断) with cancer and was too weak even to attend her husband’s funeral. “Your father will forgive me, because he knows that I have always loved him,” she told Anna and her sister, Elena Kudimova, the day he was buried. A week later, she had an operation and since then Anna and Elena had been taking turns helping her deal with her grief.

Politkovskaya was supposed to spend the day at the hospital, but her twenty-six-year-old daughter, who was pregnant, had just moved into Politkovskaya’s apartment, on Lesnaya Street, while her own place was being prepared for the baby. “Anna had so much on her mind,” Elena Kudimova told me when we met in London, before Christmas. “And she was trying to finish her article.” Politkovskaya was a special reporter for the small newspaper Novaya Gazeta, and, like most of her work, the piece focused on the terror that can be seen all over the southern republic of Chechnya. This time, she had been trying to report repeated cruel acts done by people faithful to the Prime Minister, Ramzan Kadyrov, who are in favour of Russia. In the past seven years, Politkovskaya had written dozens of accounts of life during wartime; many had been collected in her book “A Small Corner of Hell: reports from Chechnya.” Politkovskaya was far more likely to spend time in a hospital than on a battlefield, and her writing bore frequent witness to robbery, and the uncontrolled cruelty of life in a place that few other Russians—and almost no other reporters—cared to think about.

41. Politkovskaya’s father died of ______.

A. tiredness          B. a heart disease        C. an attack       D. an accident

42. From the text we know that Raisa Mazepa ______.

A. didn’t love her husband                   

B. didn’t attend her husband’s funeral

C. was having an operation the day her husband was buried

D. was too sad to attend her husband’s funeral

43. The underlined word “emerged” most likely means ______.

A. came out        B. went into      C. disappeared      D. left for

44. How many family members of Anna are mentioned in the passage?

A. Three.           B. Four         C. Five            D. Six

45. Which of the following words can best describe Politkovskaya’s character?

A. Curious         B. easy-going     C. careless          D. responsible

题型:选择题

流行病学研究方法之一的横断面调查也称

A.现场实验

B.现况调查

C.病例-对照研究

D.群组研究

E.常规资料分析

题型:选择题

下列关于社区环境的说法哪项不正确()。

A、健康社区能合理利用资源

B、健康社区为应对环境威胁做好了准备

C、社区的动物不受社区地理环境的影响

D、社区的地理环境可以影响社区的健康

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