书面表达。

      假定你是Alice，你的朋友(Mike)是一位中学生，他妈妈送给他一部手机，他想把它带到学

校用。请你写一封信给他，说明中学生用手机的害处，说服他上学期间不用手机。注意：语句

要通顺、连贯，字数约80字。

                                                                                                                   9th November, 2005

Dear Mike, 

       ______________________________________________________________________________

__________________________________________________________________________________

__________________________________________________________________________________

                                                                                                                                      Yours,

                                                                                                                                       Alice

古人提出的妊娠禁忌药主要有哪三类（）

A.毒性药类

B.益气药类

C.养血药类

D.破血药类

E.攻逐药类