• 2015内蒙古高考试题库下载版试题及答案-云返教育

    • 厂家采取低价策略         
      答案解析
      类型: 单选题     难度系数:
    • 定义在R上的奇函数f(x)有最小正周期为2,且x∈(0,1)时,f(x)=
      2x
      4x+1

      (1)求f(x)在[-1,1]上的解析式;
      (2)判断f(x)在(0,1)上的单调性;
      (3)当λ为何值时,方程f(x)=λ在x∈[-1,1]上有实数解.
      答案解析
      类型: 单选题     难度系数:
    • 将接种有醋酸菌的葡萄汁100ml(4份)和接种有酵母菌的葡萄汁100ml(4份)分别装在100ml、200ml、300ml、400ml的烧瓶中,将口密封,置于适宜温度下培养,24小时后产生的醋酸和酒精最多的分别是
      答案解析
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    • 据下图判断,下列叙述不符合生态学原理的是
      答案解析
      类型: 单选题     难度系数:
    • 基因控制生物体性状的方式是
      答案解析
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    • 已知函数f(x)=log2(x+1),当点(x,y)是y=f(x)的图象上的点时,点(
      x
      3
      y
      2
      )是y=g(x)的图象上的点.
      (I)写出y=g(x)的表达式;
      (II)当g(x)-f(x)≥0时,求x的取值范围;
      (Ⅲ)当x在(Ⅱ)所给范围取值时,求g(x)-f(x)的最大值.
      答案解析
      类型: 解答题     难度系数:
    • 某高校在2013年的自主招生考试成绩中随机抽取100名学生的笔试成绩,按成绩分组得到的频率分布表如下:
      组号 分组 频数 频率
      第一组 [160,165) 5 0.050
      第二组 [165,170) a 0.350
      第三组 [170,175) 30 b
      第四组 [175,180) c 0.200
      第五组 [180,185] 10 0.100
      合计 100 1.00
      (1)为了能选拔出优秀的学生,高校决定在笔试成绩高的第三、四、五组中用分层抽样法抽取6名学生进入第二轮面试,试确定a,b,c的值并求第三、四、五组每组各抽取多少名学生进入第二轮面试;
      (2)在(1)的前提下,学校决定在6名学生中随机抽取2名学生接受A考官的面试,求第四组中至少有一名学生被A考官面试的概率.
      答案解析
      类型: 解答题     难度系数:
    • Some people are lucky enough to be born with a good sense of direction and even if they have only visited a place once, they will be able to find it again years later. I am one of those unfortunate people who have sense of direction and I may have visited a place time after time but I still get on my way there. When I was young I was so that I never dared ask strangers the way and so I used to round in circles and hope that I would happen to get to the place I was heading for. I am too shy to ask people for directions, but I often replies that puzzle me. Often people do not like to admit that they didn’t know their hometown and will on telling you the way, even if they do not know it ; others who are to prove that they know their hometown very well, will give you a long of directions which you cannot possibly hope to remember, and still others do not seem to be able to between their left and their right and you find in the end that you are going in the direction. If anyone ever asks me the way to somewhere, I always tell them I am a to the town in order to avoid giving them wrong but even this can have embarrassing (尴尬的) results. Once I was on my way to work when I was stopped by a man who asked me if I would him the way to the Sunlight Building. I gave my reply, but I had not walked on a few steps when I that he had asked for directions to my office building. However, at this point, I decided it was too late to turn back and him in the crowd behind me I was going to meet with someone at the office and I did not want to keep him waiting. Imagine my embarrassment when my secretary showed in the man who had asked for directions to my office and his when he recognized me as the person he had asked.D.missing
      【小题3】
      答案解析
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