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卷柏属植物横切面上,皮层和中柱由横桥细胞相连接。( )

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  • 【名词&注释】

    答题卡(answer sheet)、充分发挥(give full play to)、无条件(unconditional)、发挥主观能动性、尊重客观规律(respecting objective law)、一棵树(a tree)

  • [单选题]卷柏属植物横切面上,皮层和中柱由横桥细胞相连接。( )

  • A. 正确
    B. 错误

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。A
  • A. I suddenly heard an elephant crying as though frightened. Looking down, I immediately recognized that something was wrong, and ran down to the edge of the near bank. There I saw Ma Shwe with her three-month-old calf struggling in the fast-rising water, and it was a life-and-death struggle. Her calf was floating and screaming with fear. Ma Shwe was as near to the far bank as she could get, holding her whole body against the rushing water, and keeping the calf pressed against her huge body. Every now and then the rushing water would sweep the calf away.
    B. There was a sudden rise in the water and the calf was washed clean over the mother’s body and was gone. Ma Shwe turned quickly to reach it and pressed the calf with her head and trunk(象鼻) against the rocky bank. Then with a huge effort, she picked it up in her trunk and tried until she was able to place it on a narrow shelf of rock.
    C. Just at this moment she fell back into the river. If she were carried down, it would be certain death. I knew, as well as she did, that there was one spot(地点) where she could get up the bank, but it was on the other side from where she had put her calf.
    D. While I was wondering what I could do next, I heard the sound of a mother’s love. Ma Shwe had crossed the river and got up the bank and was making her way back as fast as she could, roaring (吼叫) all the time, but to her calf it was music.
    E. 56. The moment the author got down to the river bank he saw _____,
    F. . the calf was about to fall into the river
    G. Ma Shwe was placing the calf on the rock
    H. the calf was washed away by the rising water
    I. Ma Shwe was holding the calf against the rushing water

  • [单选题].有句话这样说:“当人类砍倒第一棵树(a tree)的时候,文明开始了;当人类砍倒最后一棵树(a tree)的时候,文明结束了。”这句话蕴含的哲理是( )
  • A. 人类在利用自然的同时必须改造自然
    B. 尊重客观规律(respecting objective law)必须充分发挥主观能动性
    C. 事物的联系是客观的、无条件的
    D. 矛盾双方在一定条件下可以相互转化

  • [单选题]Why is Franklin described as “Dark Lady of DNA”?
  • A. She developed pictures in dark labs.
    B. She discovered the black X------ the shape of DNA.
    C. Her name was forgotten after her death.
    D. Her contribution was unknown to the public.

  • [单选题]The underlined word remedy in Paragraph 1 is closest in meaning to __________.
  • A. avoid
    B. accept
    C. improve
    D. consider

  • [单选题]To have your travel notes published, you may contact.
  • A. Students’ UnionB. Gayle Moore
    B. The International CenterD. Life Planning Workshop

  • [单选题]马鞭草科与唇形科(Lemiaceae,Labiatae)叶多对生,而紫草科叶多互生。( )
  • A. 正确
    B. 错误

  • [单选题]
  • A. puzzled
    B. annoyed
    C. embarrassed
    D. shocked

  • [单选题]凡叶柄着生在叶片背面的中央或边缘内,称( )叶。
  • A. 肾形
    B. 菱形
    C. 盾形
    D. 扇形

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