2015-2016学年人教版选修6unit3 Using Language-302edu教育资源网

2015-2016学年人教版选修6unit3 Using Language

What is the difference between HIV and AIDS?

HIV is a virus that can live in the body for some time – occasionally many years – without symptoms being present. Even though they may not be showing symptoms, a person with HIV can infect others.

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