不凡考网

花瓣有距的分类群是( )。

  • 下载次数:
  • 支持语言:
  • 1457
  • 中文简体
  • 文件类型:
  • 支持平台:
  • pdf文档
  • PC/手机
  • 【名词&注释】

    分类学(taxonomy)、藏传佛教(tibetan buddhism)、独立自主(independence)、葫芦科(cucurbitaceae)、团结互助(unity and mutual aid)、和谐的民族关系(harmonious relationships among ethic gr ...)、韧皮部(phloem)、电泳分析(electrophoresis)、老百姓(commonage)、多年来(many years)

  • [单选题]花瓣有距的分类群是( )。

  • A. 茄科
    B. 唇形科
    C. 堇菜科
    D. 葫芦科

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]DCities alarmed by deaths and injuries of pedestrians are taking efforts to make crosswalks safer for people on foot, especially seniors and children who need more time to cross streets.
  • A. A pedestrian is killed in a traffic accident in the USA every 110 minutes;one is injured every nine minutes, according to official date. Crosswalk can be especially dangerous for the elderly. Among people 70 and older, 36% of pedestrian deaths in 2006 occurred in crosswalks, compared with 21% of those younger than 70 , according to the Insurance Institute for Highway Safety.
    B. The Federal Highway Administration(FHWA)advises that next year states increase by nearly 15% the amount of time traffic lights provide for pedestrians to cross the street after the flashing orange hand appears .
    C. FHWA spokesman Doug Hecox says reasons for the change include an aging population that needs more time to cross, health-conscious Americans walking more, children encouraged to walk to prevent getting overweight and high gas prices pushing people to walk instead of drive.
    D. says.
    E. 53. Which of the following is true according to the text?
    F. Among 100 pedestrian deaths there were 21 people younger than 70.
    G. Old people are more likely to meet with accidents in crosswalks.
    H. Traffic accidents killed more old people than young people.
    I. About seven traffic accidents happened per hour.

  • [单选题]叶内中脉的韧皮部(phloem)靠:近下表皮。( )
  • A. 正确
    B. 错误

  • [单选题]为鉴定一株高茎豌豆和一只黑色豚鼠的纯合与否,应采用的最简便遗传方法分别是
  • A. 杂交、杂交
    B. 杂交、测交
    C. 自交、自交
    D. 自交、测交

  • [单选题]藏传佛教在玉树州老百姓(commonage)的生活中占有重要地位。2010年4月28日,在地震中受损严重的结古镇禅古寺的喇嘛们进行了灾后首场法事活动,为逝者超度,向救援者发达感恩,给全国人民及世博会祈福。材料表明在我国
  • A. 正常的宗教活动可以为社会和谐做贡献
    B. 形成了平等团结互助和谐的民族关系
    C. 少数民族有从事宗教活动的自由
    D. 宗教坚持独立自主自办的原则

  • [单选题]塔赫他间等人用( )来解释植物界的系统发生。
  • A. 真花学说
    B. 假花学说
    C. 幼态成熟学说
    D. 单元说

  • [单选题]The traffic rule says young children under the age of four and ____ less than 40 pounds must be **a child safety seat.
  • A. being weighed
    B. to weigh
    C. weighed
    D. weighing

  • [单选题]研究蛋白质的分类学价值时采用以下各种研究方法,但除( )以外。
  • A. 血清学方法
    B. 电泳分析(electrophoresis)
    C. 同工酶电泳
    D. 分子杂交

  • [单选题]艾丁湖1万多年来(many years)变迁的主要原因是
  • A. 围湖造田
    B. 绿洲萎缩
    C. 湖区汇水面积减少
    D. 气候变干

  • 本文链接:https://www.zhukaozhuanjia.com/download/960nj3.html
  • 推荐阅读
    @2019-2026 不凡考网 www.zhukaozhuanjia.com 蜀ICP备20012290号-2