某8岁男孩，一年来时有阵发性腹痛，在脐周部位，多在空腹时发作，食后稍减。食欲不振。面

胶囊剂具有如下哪些特点

A、能掩盖药物不良嗅味、提高稳定性

B、可弥补其它固体剂型的不足

C、可将药物水溶液密封于软胶囊中，提高生物利用度

D、可延缓药物的释放和定位释药

E、生产自动化程度较片剂高、成本低

以上辅料具有防腐作用的是

A．河砂
B．白矾
C．豆腐
D．麦麸
E．蛤粉

下列各组物质中，（）组是导体。

A.银、铁、锗

B.铜、塑料、硅

C.铜、铝、大地

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.

To my surprise, at yesterday’s meeting he again brought （） the plan that had been disapproved a week before．

A．about

B．out

C．back

D．up