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全球变暖与碳的生物地球化学循环无关。( )

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  • 【名词&注释】

    生物地球化学(biogeochemistry)、地球化学循环(geochemical cycle)、舞蹈家(ballarin)、赵飞燕

  • [判断题]全球变暖与碳的生物地球化学循环无关。( )

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]Passage TwoHow can a single postage stamp be worth $ 16,800?
  • A. Any mistake made in the printing of a stamp raises its value to stamp collectors. A mistake on one in expensive' postage stamp has made the stamp worth a million and a half times its original value.
    B. The mistake was made more than a hundred years ago in the British colony of Mauritius, a small is land in the Indian Ocean. In 1847 an order for stamps was sent to a London printer, and Mauritius was to become the fourth country in the world to issue stamps.
    C. Before the order was filled and delivered, a ball (舞会) was planned at Mauritius' Government House, and stamps were needed to send out the invitations. A local printer was instructed to copy the de sign for the stamps. He accidentally inscribed the words "Post Office" instead of "Post Paid" on the sever al hundred stamps that he printed.
    D. Today there are only twenty-six of these misprinted stamps left--fourteen "One Penny Orange-Reds" and twelve "Two Penny Blues". Because of the Two Penny Blue's rareness (罕见) and age, collectors have paid as much as $ 16,800 for it.
    E. 36. A postage stamp's value to collectors is raised if ______.
    F. there are few others like it
    G. there are no errors on the stamps
    H. a mistake is made in the ,printing
    I. both A and C

  • [多选题]脾的主要韧带有( )
  • A. 胃脾韧带
    B. 镰状韧带
    C. 肝圆韧带
    D. 脾肾韧带
    E. 冠状韧带

  • [单选题]赵飞燕是______朝著名舞蹈家。 ( )
  • A. 汉
    B. 唐
    C. 宋
    D. 元

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