不凡考网

⑶实验室的废液需经处理才能排放,为减弱含有硫酸的废液的酸性,

  • 下载次数:
  • 支持语言:
  • 842
  • 中文简体
  • 文件类型:
  • 支持平台:
  • pdf文档
  • PC/手机
  • 【名词&注释】

    多边形(polygon)、碳酸钠(sodium carbonate)、是什么(what is)、一般疑问句(yes-no question)、熟石灰(slaked lime)、顺序排列(seriation)、感人至深(touching)

  • [单选题]⑶实验室的废液需经处理才能排放,为减弱含有硫酸的废液的酸性,不能选用的物质是_______(填字母序号)。

  • A. 废铁钉
    B. 熟石灰
    C. 二氧化碳
    D. 碳酸钠

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]9. —Can you play basketball?—Yes, I_________ .
  • A. am
    B. do
    C. must
    D. can

  • [单选题]22.It takes__________ for the moon to go around the earth
  • A. more than a week
    B. nearly a month
    C. half a year
    D. more than a year

  • [单选题]32.
  • A. drop
    B. fall
    C. fit
    D. set

  • [单选题]7. The tiger escaped ________ the zoo last Sunday.
  • A. on
    B. of
    C. from
    D. out

  • [单选题]一个多边形的内角和比它的外角的和的2倍还大180°,这个多边形的边数是( )
  • A. 5
    B. 6
    C. 7
    D. 8

  • [单选题]8.I don't have ________erasers. I think Ann has ________ .
  • A. any; any
    B. some ;any
    C. some; some
    D. any; some

  • [单选题]依次填入下面文段横线处的短语,顺序排列(seriation)正确的一项是()(3分)在乍暖还寒的初春时节,如期而至的“感动中国”人物评选和颁奖活动让我们柔软的心底顿生暖意,是什么使他们的故事感人至深(touching)入?为何他们能让神话大地潸然泪下?是因为他们 __________,真诚得让人感动;因为他们__________,纯粹得让人感动;因为他们__________,执着得让人感动 ;因为他们 __________,无私得让人感动。
  • A. ①大爱而无疆 ②朴素而高贵 ③善良而坚强 ④信诺而重义
    B. ①②③④
    C. ②①③④
    D. ④②③①
    E. ④③①②

  • [单选题]25. Which is right according to the passage?
  • A. The meal looks beautiful because the food on the plate is in different colors.
    B. American people do not like to cook food at home.
    C. American parents do not like to teach their children to cook.

  • [单选题]9. Can Miss Wang _______ us this afternoon?
  • A. play
    B. plays
    C. plays with
    D. play with

  • 本文链接:https://www.zhukaozhuanjia.com/download/73wlnr.html
  • 推荐阅读
    @2019-2026 不凡考网 www.zhukaozhuanjia.com 蜀ICP备20012290号-2