第十三届世界艾滋病大会交流和研讨的内容有：基础科学；
The contents of the conference includes five parts in term with basic science;
一名男子在第17届世界艾滋病大会举办的图片展上观看图片。
A man in the 17th World AIDS Conference held on to watch the exhibition picture.
一名男子在第17届世界艾滋病大会举办的图片展上观看图片。
A man in the 17th World AIDS Conference held on to watch the exhibition picture.
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