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问题 填空题

地球质量约为5.98×1024千克，木星质量是地球质量的318倍，木星质量约是        千克（保留2个有效数字）.

答案

1.9×1027

解：由题意得，木星质量约是千克.

多项选择题

下列各项属于措施费的有（）。

A．为临时工程搭设脚手架发生的费用

B．为工程建设缴纳的工程排污费

C．为加快施工进度发生的夜间施工费

D．对已完工程进行设备保护而发生的费用

E．施工现场管理人员的工资
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填空题

Questions 9-13


·You will hearfive people giving reasons why children learn their mother tongue so well.
·Before you listen, read the list of statements, five of which are summaries of what they were saying.
·Then listen carefully and match the statements (A-F) with the people who said them (9-13) respectively.
·There is one extra statement that you don’t need to use. You will hear the passage twice.
9. Maggie: ______
  • A. The time of their learning the mother tongue is the most
    favorable of all.
    10. Cherry: ______
  • B. Children hear their native language spoken always in its
    genuine form.
    11. Mike: ______
  • C. Children have private lessons all the time to learn their mother
    tongue.
    12. Hazel: ______
  • D. Children hear their native language spoken in all possible
    situations.
    13. Jody: ______
  • E. Children have special teachers to teach them.
  • F. Children have flexible organs and sensitive ear.
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