求回答英语问题,两三句就可以了.
问题描述：
求回答英语问题,两三句就可以了.
3) What are the ways of AIDS infection?
4) How to prevent yourself from being infected?
都用英语回答哈.简单一点两三句就可以了.谢谢
答
第一个问题是First,AIDS is mainly spread through sexual contact,Second,through blood,including:input contaminated by HIV blood or blood products; Intravenous drug users who share affected by HIV pollut...