• 2012安徽2015高考试题库试题及答案-云返教育

    • 已知函数f(x)=ax3+bx-2 若f(2011)=10,则f(-2011)的值为         
      答案解析
      类型: 单选题     难度系数:
    • 对于定义在D上的函数y=f(x),若同时满足①存在闭区间[a,b]?D,使得任取x1∈[a,b],都有f(x1)=c(c是常数);②对于D内任意x2,当x2?[a,b]时总有f(x2)>c;则称f(x???为“平底型”函数.
      (1)判断f
      1(x)=|x-1|+|x-2|,f2(x)=x+|x-2|是否是“平底型”函数?简要说明理由;
      (2)设f(x)是(1)中的“平底型”函数,若|t-k|+|t+k|≥|k|?f(x),(k∈R,k≠0)对一切t∈R恒成立,求实数x的范围;
      (3)若F(x)=mx+
      x2+2x+n
      ,x∈[-2,+∞)是“平底型”函数,求m和n的值.
      答案解析
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    • 第二节根据所给句子意思以及汉语或首字母提示,写出下列各句中所缺单词的正确形式。(共15小题;每小题1分,满分15分)
      11. If you _______________(违反) the regulations, you shall be fired. Be responsible for your job.
      12. His father always reminded him to look out for ________________(潜在的)dangers ahead.
      13. Leaving the doors unlocked is a(n) ________________ (诱因) to burglars.
      14. At the end of each term, teachers are required to __________(评估)the performance of students.
      15. I believe Mary will turn up at eight. I know she is always very ______________ (准时的)for meetings.
      16. We shouldn’t change lanes without _________________(发信号) or giving wrong signals.
      17. We cannot put the theory into practice because of the fact that it has been based on a series of wrong _________________. (假设)
      18. His father a__________________(陪伴)him to school every day; he is too young to go alone.
      19. Ann likes to buy goods in large q__________________ so that she needn’t go shopping often.
      20. A sore throat and fever were the s__________________ of serious flu.
      21. She has mastered English grammar and a__________________ a large vocabulary without the help of a teacher.
      22. We had to p________________ going to France because the children were ill.
      23. The young fellow is a__________________ and likely to quarrel with anyone at any time.
      24. Time p_________________, I would like to go fishing with you this weekend.
      25. On hearing the terrible accident, you could never imagine how I worried when I was told that you two went home s________________ on such a rainy night.
      答案解析
      类型: 填空题     难度系数:
    • 第三轮中美战略与经济对话将于5月9日至10日在美国华盛顿举行,但对话未启,交锋已现。在人民币汇率这个具体问题上,中国财政部副部长朱光耀坦言:中美双方对人民币汇率改革的方向认识是一致的,但“中方坚持改革目标应为深化人民币汇率形成的机制,而美方更强调升值的幅度。”上述材料主要说明
      答案解析
      类型: 单选题     难度系数:
    • “残年风烛,发出微弱的光,苍老的手,在人间写下大爱。病弱的身躯,高贵的心灵,他在九旬的高龄俯视生命。一叠叠汇款,是寄给我们的问卷,所有人都应该思考答案。”2014年感动中国人物—拾荒助学子的高龄孤寡“五保”老人刘盛兰用行动诠释了
      答案解析
      类型: 单选题     难度系数:
    • 关于光的全反射知识,以下说法正确的是         
      答案解析
      类型: 单选题     难度系数:
    • 胰岛素、纤维素和核酸都有的元素是
      A.C、H、O、N B. C、H、O
      C.C、H、O、N、P、Mg D.C、H、O、N、P、S
      答案解析
      类型: 单选题     难度系数:
    • 中世纪以来世界金融中心的变迁经历了从以佛罗伦萨等独立城市为中心的“北意大利金融”,发展到以阿姆斯特丹为中心的“荷兰金融”,最后到以伦敦为中心的“英国金融”和以纽约华尔街为中心的“美国金融”。这个变迁过程说明世界金融中心的形成
      答案解析
      类型: 单选题     难度系数:

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