种子类中药在25℃以上时无霉菌生长，其含水量应控制在A．20%B．18%C．16%D

人们对于学生网上交友持不同意见。请你用英语写一篇关于学生网上交友的短文，介绍人们的不同观点，并表达自己的看法。参考词汇：上当受骗to be cheated

赞成的理由	反对的理由	你的看法
1．广交朋友 2．可自由表达思想 3．利于外语学习	1．浪费时间 2．影响学习 3．可能上当受骗	？

 
On-line friends
Recently ,people have had a heated discussion about whether students should make friends on-line.
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
_________________________________________________________________________
All the best ,
Yours ,
Li Hua