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    • 已知函数f(x)=log4(4x+1)+kx(k∈R)是偶函数.
      (1)求k的值;
      (2)求f(x)的值域.
      答案解析
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    • 已知函数f(x)是定义在R上的奇函数,其最小正周期为3,且x∈(-
      3
      2
      ,0)时,f(x)=log2(-3x+1),则f(2011)=         
      答案解析
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    • 2013年我国农民增收实现了改革开放以来的首次“十连快”。数据显示,农村居民人均纯收人达到8896元,扣除价格因素实际增长9.3%,高出GDP实际增速1.6%。农村居民人均纯收人实际增速高于城镇居民人均可支配收人增速2.3%,城乡居民收人之比连续4年下降,由2009年的3.33:1下降到3.03:1。由此我们可以推断出,我国农村居民收人的增长得益于
      ①经济发展水平的提高 ②我国城乡差距的缩小
      ③物价水平的相对稳定 ④收人分配的渐趋公平
      答案解析
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    • 下列关于检测生物组织中的糖类和蛋白质叙述中正确的是
      答案解析
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    • 对于常温下pH为4的氯化铵溶液与醋酸溶液,下列叙述正确的是(  )
      答案解析
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    • 已知一定量的氢气在氯气中燃烧,所得混合物用100 mL 3.00 mol/L的NaOH溶液(密度为1.12 g/mL)恰好完全吸收,测得溶液中含有NaClO的物质的量为0.0500 mol。
      (1)原NaOH溶液的质量分数为
               
      (2)所得溶液中Cl
      的物质的量为          mol;
      (3)所用氯气和参加反应的氢气的物质的量之比n(Cl
      2):n(H2)=         
      答案解析
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    • 已知函数f(x)是定义在R上的奇函数,其最小正周期为3,且x∈(-
      3
      2
      ,0)时,f(x)=log2(-3x+1),则f(2011)=         
      答案解析
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    • 图A、B、C表示的是物质运输的三种方式,以下说法中错误的是
      答案解析
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    • "S. H.E. is going to sing at the CCTV annual Spring Festival Evening Party.Is that true?" cried out Peng Weiye, a Senior 2 girl in Shanghai and die-hard S. H.E. fan.
      After checking it on the Internet, Peng quickly phoned friends to spread the news. For fans like her, S. H. E. ’s performance is perhaps the only part of the old fashioned evening to get excited about.
      The Taiwanese band (乐队)is made up of Selina, Hebe and Ella. Their name comes from the first letter of each of the singers' English names.
      Last week S. H. E. announced they would perform in Las Vegas, US, over Christmas and then in Guangzhou on January 15.
      At their Shanghai show on October 30, hundreds of parents waited outside the Hongkou Stadium. Inside, thousands of teenagers sang, cried and shouted as the band performed.
      "I love their music, healthy image and everything related to them. Thank God that, although my parents don't understand why I love them so much, they still bought me a ticket for that show," said Peng about the Shanghai performance(演出).
      It is not just on the mainland(大陆) that the three girls have made audiences much excited. In the past year the band has passed through Taiwan, Hong Kong and even Singapore and Malaysia.
      When the three high school girls entered a singing contest in Taiwan in 2000, none of them ever dreamed of being a superstar. "We had never met before, and we didn't talk at all at the beginning," recalled Ella.
      When asked about the secret of their success, she said, "Our average looks(长相) and not-so-expensive clothes keep us close to our fans. We are happy to be the girls next door(邻家女孩), your singing sisters."
      "It's really a magical journey, from day-dreaming high school girls to singers performing on the same stage as our idols(偶像). Nothing but magical," she said.
      46. Why was Peng Weiye, a Senior 2 girl, so excited?
      A. S.H.E. band will get the old fashioned evening exciting.
      B. S. H.E. will perform in Las Vegas over Christmas.
      C. Her parents bought her a ticket for S. H. E. Is Shanghai show.
      D. S. H.E. will perform on the CCTV Spring Festival Evening Party.
      47. How did the Taiwanese band get the name?
      A. Their fans gave the name to them.
      B. Their idols had a deep influence on them.
      C. A singing contest gave their idea of the band name
      D. The first letters of Selina, Hebe and Ella form the band name.
      48. What do you know about Peng Weiye?
      A. She stayed outside the Hongkou Stadium to listen to S. H. E. 's performance.
      B. She will watch the performance in Guangzhou on January 15.
      C. She pays close attention to everything about S. H. E.
      D. She was grateful that her parents understood and supported her.
      49. Which is true about S. H. E. ?
      A. The secret to their success is their pretty faces and lovely clothes.
      B. They were close friends when they entered a singing contest.
      C. They caused a storm of excitement in Southeast Asia.
      D. They have well prepared to perform with their idols.
      50. Which do you think is NOT the reason for S. H. E’s popularity among their fans?
      A. Their music and their healthy image.
      B. They can make audience much excited.
      C. Their success meets their fans’ day dream of becoming others’ idols.
      D. Their average looks and not-so-expensive clothes keep them close to their fans.
      答案解析
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