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光棍树为一奇树,其茎高数米,绿色光滑,无一叶(偶有小叶生于枝

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  • 【名词&注释】

    光合作用、蕨类植物(pteridophyte)、《黄鹤楼》(the yellow crane tower)、业精于勤(mastery of work)、植物种子(plant seed)、孢子体和配子体、空白处、仙人掌科(cactaceae)、橡胶树属(hevea)

  • [单选题]光棍树为一奇树,其茎高数米,绿色光滑,无一叶(偶有小叶生于枝端),乳汁丰富且此树花序为杯状花序,故此树应属于( )。

  • A. 仙人掌科(cactaceae)
    B. 大戟科大戟属
    C. 大戟科橡胶树属(hevea)
    D. 大戟科乌桕属

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]植物在移栽时最容易损伤的部位是( )。
  • A. 主根
    B. 侧根
    C. 叶
    D. 根尖

  • [单选题]阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项,A
  • A. How I Turned to Be Optimistic
    B. I began to grow up that winter night when my parents and I were returning from my aunt's house, and my mother said that we might soon be leaving for merica. We were on the bus then. I was crying, and some people on the bus were turning around to look at me. I remember that I could not bear the thought of never hearing again the radio program for school children to which I listened every morning.
    C. I do not remember myself crying for this reason again. In fact, I think I cried very little when I was saying goodbye to my friends and relatives. When we were leaving I thought about all the places I was going to see-—the strange and magical places I had known only from books and pictures. The country I was leaving never to come back was hardly in my head then.
    D. The four years that followed taught me the importance of optimism, but the idea did not come to me at once. For the first two years in New York I was really lost—having to study in three schools as a result of family moves. I did not quite know what I was or what I should be. Mother remarried, and things became even more complex for me. Some time passed before my stepfather and I got used to each other. I was often sad, and saw no end to "the hard times."
    E. My responsibilities in the family increased a lot since I knew English better than everyone else at home. I wrote letters, filled out forms, translated at interviews with Immigration officers, took my grandparents to the doctor and translated there, and even discussed telephone bills with company representatives.
    F. From my experiences I have learned one important rule: almost all common troubles eventually go away! Something good is certain to happen in the end when you do not give up, and just wait a little! I believe that my life will turn out all right, even though it will not be that easy.
    G. 56. How did the author get to know merica?
    H. Fromhermother.
    I. Frombooksandpictures.D.Fromradioprograms.

  • [单选题]The purpose of the memo is to
  • A. attract students’interest in the programme
    B. require the parents to select a sport for their chinld
    C. help the staff explain the programme to the parents
    D. remind teachers and lifeguards to be present on time

  • [单选题]阅读下面短文,从短文后各题所给的四个选项(A、
  • B、C、和D)中,选出可以填入空白处的最佳选项,

  • A. valuable

  • [单选题]蕨类植物的孢子体和配子体都能进行光合作用,能独立生活。( )
  • A. 正确
    B. 错误

  • [单选题]虽然不同植物种子的形状各不相同,但它们的基本结构是一致的。( )
  • A. 正确
    B. 错误

  • [单选题]补写出下列名篇名句中的空缺部分。(两题任选一题作答;如果两题都答,则按第一小题计分)(5分)
  • A. (1)既替余以蕙纕兮, ① 。 ② ,虽九死其犹未悔。(届原 离骚))
    B. 凡事预则立, ③ 。(《礼记·中庸》)
    C. 黄鹤一去不复返, ④ 。晴川历历汉阳树, ⑤ 。(崔颢《黄鹤楼》)
    D. (2)子日:“知之者不如好之者, ① 。”(《论语·雍也》)
    E. 业精于勤, ② ;行成于思, ③ 。(韩愈《进学解》)
    F. 客亦知夫水与月乎?逝者如斯, ④ ; 盈虚者如彼, ⑤ [单选题]罗汉松种子下方紫红色的膨大部分为种托。( )
  • A. 正确
    B. 错误

  • [单选题]用于外伤和手术的滴眼剂应在下列哪个洁净环境中进行配制和灌装( )。
  • A. 三十万级
    B. 十万级
    C. 一万级
    D. 百级
    E. 没有要求洁净级别

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