To draw lessons from history, make an analysis of current situation and discuss the relationship between prevention flu pandemic and creating an harmonious society.

 
  • 通过总结历史教训,分析目前可能引起流感大流行的原因,展开预防流感大流行与共建和谐社会关系的讨论。
今日热词
目录 附录 查词历史