以how to prevent Type A H1N1为题的英语作文

avoid contacting the live pig or going to have the pig farm place. 5, avoid going to the crowd crowded place. 6, maintain the room ventilates, the air to be fresh good.怎样预防甲型h1n1 ?1、戴口罩。医院有一种名叫N95的这个口罩，它对防止疾病的传播非常有效，对于一般普通老百姓来...