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

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求回答英语问题,两三句就可以了.3)WhatarethewaysofAIDSinfection?4)Howtopreventyourselffrombeinginfected?都用英语回答哈.简单一点

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
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

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
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 pollution,not sterilized needles and syringes; Share other medical devices or life appliance also can be transmitted by the lesions,but rare.Syringes and needles disinfection is not complete or not disinfected.
Third,mother-to-child transmission (PMTCT) :also called perinatal transmission,that is infected with HIV mother during prenatal,delivery and postnatal will soon be in the process of HIV infection to the fetus or baby
这样可以么.采纳我的我写第二个

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