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细胞的分化、衰老和凋亡是普遍存在的生命现象。下列有关叙述正确

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  • 【名词&注释】

    原癌基因(proto-oncogene)、公民权利(civil rights)、法律规定、组织细胞(histocyte)、癌细胞(cancer cell)、生命现象(life phenomenon)、“铁血政策”、同步进行(carried out simultaneously)、扩张政策(expansion policy)、普遍存在(ubiquity)

  • [单选题]细胞的分化、衰老和凋亡是普遍存在(ubiquity)的生命现象。下列有关叙述正确的是

  • A. 人体各种组织细胞的衰老是同步进行(carried out simultaneously)
    B. 人的早期胚胎有尾,尾部细胞随着发育逐渐凋亡
    C. 细胞癌变是细胞高度分化的结果
    D. 皮肤上的“老年斑”是细胞凋亡的产物

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]Just as Professor Scotti often it, success is ninety-nine percent mental attitude.
  • A. getsB.makes
    B. putsD.means

  • [单选题]双悬果见于( )。
  • A. 芹菜
    B. 萝卜
    C. 槭树
    D. 以上都是

  • [单选题]32 The discovery of gold in Australia led thousands to believe that a fortune——
  • A. is made
    B. would make
    C. was to be made
    D. had made

  • [单选题]What kind of man is doing most housework according to the text?
  • A. An unmarried man. B. An older married man.
    B. A younger married man. D. A married man with children.

  • [单选题]尽管许多国家文化和制度的有差异,但公民权利和义务的法律规定却有着许多共同点,其中对公民权达成认同的是①自由权 ②休闲权 ③受教育权 ④劳动权
  • A. ①②③
    B. ①②④
    C. ②③④
    D. ①③④

  • [单选题]What can we learn from the last two paragraphs?
  • A. More time should be spent on computers.
    B. Children should be forbidden from watching TV.
    C. TV sets shouldn’t be allowed in children’s bedrooms.
    D. Further studies on high-achieving students should be done.

  • [单选题]著名学者汉斯?科恩认为,普鲁士19世纪60、70年代的胜利,“为1918年和1945年的失败打下了基础”。以下各项可以作为科恩论断依据的是
  • A. 德国继承了普鲁士的旧制度 B. 德国结束了四分五裂的局面
    B. 俾斯麦宰相实行“铁血政策” D. 德国推行海外殖民扩张政策(expansion policy)

  • [单选题]67 .We can learn from the passage that businesses will .
  • A. have a strong desire to reduce costs
    B. use the same logo in their marketing
    C. gain advantages by taking early action
    D. attract more shoppers by storing goods

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