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氮素的下列四种状态中,能被植物的根直接吸收利用的是( )

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  • 【名词&注释】

    科学发展(scientific development)、以人为本(human-oriented)、实事求是(seeking truth from facts)、邓小平理论(his theory)、解放思想(emancipate the mind)、对外开放(opening to the outside world)、执政为民(government for the people)、立党为公(the party for the people)、连接词。、陷入困境(get into trouble)

  • [单选题]氮素的下列四种状态中,能被植物的根直接吸收利用的是( )

  • A. N2
    B. NO2
    C. NH4+
    D. NH3

  • 查看答案&解析
  • 举一反三:
  • [单选题]We can conclude that accidents involving cars ______.
  • A. happened most often in New York City
    B. do not happen as often as they did in the early days of the auto
    C. have killed many more people since Mr Bliss was killed
    D. were always the driver's fault

  • [单选题]邓小平理论的精髓是( )
  • A. 以人为本,科学发展
    B. 解放思想,实事求是
    C. 立党为公(the party for the people),执政为民(government for the people)
    D. 对外开放,改革创新

  • [单选题]
  • A. 久内侧膝状体B.外侧膝状体
    B. 腹后内侧核
    C. 腹外侧核
    D. 腹后外侧核
    E. 1.接受视束冲动的结构是( )
    F. 2.接受头面部浅深感觉冲动的结构是( )

  • [单选题]Danny didn't say anything about the matter to Mrs. Green because______.
  • A. she had known it
    B. the other boys told her
    C. he didn't want to be in trouble
    D. his mother didn't want him to say it

  • [单选题]Will you ______ me a favor, please?
  • A. do
    B. make
    C. give
    D. bring

  • [单选题]下列画横线的句子翻译错误的一项是( )
  • A. 与尔三矢,尔其无忘乃父之志。
    B. 尔其无忘乃父之志:希望你不要忘记你父亲报仇雪恨的心愿。
    C. 故今具道所以,冀君实或见恕。
    D. 冀君实或见恕:希望或许得到你的原谅。
    E. 左右以君贱之也,食以草具。
    F. 食以草具:拿粗糙的饭菜给他吃。
    G. 将军自念,岂尝有所恨乎?
    H. 岂尝有所恨乎:难道曾经有什么怨恨的事吗?

  • [单选题]开口于结膜上穹的是 ( )
  • A. 泪腺
    B. 泪小管
    C. 泪点
    D. 泪囊
    E. 鼻泪管

  • [单选题]If I had__________your advice,the situation wouldn’t have been so terrible.
  • A. listened
    B. followed
    C. heard
    D. obeyed

  • [单选题]I don't think the audience would care _________the film is financed or distributed.
  • A. whether
    B. if
    C. how
    D. when

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