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一元二次方程x2+x-2=0 的两根之积是( )

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  • 【名词&注释】

    饮食习惯、形容词(adjective)、篮球队(basketball team)、感叹句(exclamatory sentence)、不可数名词(uncountable nouns)、不定冠词(indefinite article)、事业成功、不健康(unthriftiness)、离不开

  • [单选题]一元二次方程x2+x-2=0 的两根之积是( )

  • A. -1
    B. -2
    C. 1
    D. 2

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]Some rules are almost the same _______in the world, but rules of etiquette can be different from place to place.
  • A. somewhere
    B. anywhere
    C. nowhere
    D. everywhere

  • [单选题]According to his plan, his plane should have taken off at _______.
  • A. 6:30
    B. 7:00
    C. 7:30
    D. :8:00

  • [单选题]22.1 used to love this film when I was young,but I _________ it that way any more.
  • A. don- t feel
    B. didn- t feel
    C. haven- t felt
    D. hadn- t felt

  • [单选题]10.________exciting news! We will have__________- long holiday after the exam.
  • A. What an ;a
    B. What ;a
    C. How an ;the
    D. How ;the

  • [单选题]16.
  • A. if
    B. though
    C. because
    D. since

  • [单选题]13.
  • A. exciting
    B. happy
    C. bad
    D. wonderful

  • [单选题]The music in the supermarket sounded so??____________ that I wanted to leave at once.
  • A. soft
    B. wonderful
    C. friendly
    D. noisy

  • [单选题]25. The best title for this passage is _____.
  • A. Bad habits
    B. Junk food
    C. Unhealthy food
    D. Advice on healthy eating

  • [单选题]有一位篮球队队长在获得总冠军时说:“你以为这是一个人在战斗,那你就错了,这是五个人的运动。”材料说明
  • A. 合作离不开公平
    B. 合作就一定会取得成功
    C. 合作是事业成功的土壤
    D. 要合作就不能有竞争

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