• 2017海南医学副高考试题库试题及答案-云返教育

    • 如果偶函数f(x)在[3,7]上是增函数且最小值是2,那么f(x)在[-7,-3]上是(  )
      答案解析
      类型: 单选题     难度系数:
    • “在石头和植物中,可以找到同样的生命的主要原则,和在人类机体中所找到的一样;一切差别是在于这些形态的组合,在于各种器官的数量、比例、排列和形状”。这一思想认为
      答案解析
      类型: 多选题     难度系数:
    • 下列各组物质的性质比较,正确的是(  )
      答案解析
      类型: 单选题     难度系数:
    • 一摆长为l的单摆做简谐运动,从某时刻开始计时,经过t=
      11π
      2
      l
      g
      ,摆球具有负向最大加速度,下面四个图象分别记录了该单摆从计时时刻开始到
      3T
      2
      的振动图象,其中正确的是(  )
      答案解析
      类型: 单选题     难度系数:
    • 下列能表示正常人类男性的染色体组型的是

      A B

      C D
      答案解析
      类型: 单选题     难度系数:
    • 下面是有关生物的调节图。请据图回答:

      (1)如果图1代表人在寒风中瑟瑟发抖时身体内某处的调节示意图,分泌物a代表某种激素,该激素可随血液循环带到垂体,并促进垂体分泌促进某腺体分泌激素b的激素。当血液中的激素b含量增加到一定程度时,又会反过来抑制细胞甲的活动,则细胞甲是
      细胞,激素b是  。正常人血浆PH为  ;抗体的作用机理: 
       
      现天气已转冷,中学生起早床时常出现全身颤抖:写出此反射弧:
       
        (2分)
      (2)研究发现在一定范围内,生长素能促进棉纤维的产生,图2为棉纤维将要从棉花胚珠上产生时,无纤维棉花、普通棉花和优质棉花(棉纤维既长又多)胚珠表皮细胞中生长素的含量,则图中丙表示
        棉花。进一步研究发现生长素作用于植物细胞的分子机制是促进细胞内的转录过程。请设计实验验证这种作用机制。
      ①实验材料:培养液、普通棉花胚珠表皮细胞、适宜浓度生长素溶液、RNA测量装置。
      ②该实验的目的是:
         
      ③实验思路:
      第一步:取两个培养瓶,编号为A、B,分别加入适量且等量的培养液普通棉花胚珠表皮细胞。
      第二步:A瓶不做处理,B瓶加入
           
      第三步:将A、B培养瓶放在培养箱中培养一段合适的时间。
      第四步:测定A、B培养瓶细胞中
        的含量,做好记录。
      ④实验结论:略。
      ⑤该实验中的自变量是
       
      答案解析
      类型: 解答题     难度系数:
    • (1)第三周期最外层S轨道电子数与P轨道电子数相等的元素A,可以与第二周期原子半径最小的元素B形成化合物AB4,该分子的空间构型为          ,是          分子(填“极性”或“非极性”).
      (2)第二周期中未成对电子数最多的元素C与第三周期第一电离能最小的元素D可以形成两种化合物D
      3C和DC3,D3C遇水产生使湿润的红色石蕊试纸变蓝色的气体,则D3C与盐酸反应的化学方程式为          ;DC3固体属于          晶体.
      (3)钛(Ti)的原子序数为22,其价电子排布式为
                .钛的化合物TiCl3?6H2O(相对分子质量为262.5)配位数为6,取该晶体26.25g配成溶液,加入足量AgNO3溶液,过滤、洗涤、烘干、称重,沉淀为28.70g,则该晶体的化学式应表示为          ,氯元素的微粒与其他微粒间的作用力是         
      答案解析
      类型: 填空题     难度系数:

    •   Sports can help you keep fit and get in touch with nature .However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.
      Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses(球场) in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.
      There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.
      Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.
      64. Which of the following is the author most probably in favor of?
      A. Cycling around a lake. B. Motor racing in the desert.
      C. Playing basketball in a gym. D. Swimming in a sports center.
      65. What do we know about golf from the passage?
      A. It is popular in Portugal and Spain.
      B. It causes water shortages around the world.
      C. It pollutes the earth with chemicals and wastes.
      D. It needs water and electricity to keep its courses green.
      66. The author uses power walking as an example mainly because______.
      A. it is an outdoor sport B. it improves our health
      C. it uses fewer resources D. it is recommended by experts
      67. The author writes the passage to_______.
      A. show us the function of major sports
      B. encourage us to go in for green sports
      C. discuss the major influence of popular sports
      D. introduce different types of environment-friendly sports
      答案解析
      类型: 阅读理解     难度系数:

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