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问题 多项选择题

收信机在通信过程中要具有（）功能。

A.调制

B.选择

C.放大

D.解调

答案

参考答案：B, C, D

单项选择题

在气的生成和水液代谢方面关系密切的是

A．心与肾
B．心与肺
C．肺与脾
D．脾与肝
E．肺与肝
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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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