亚洲视频免费一区,国产欧美综合一区二区,亚洲国产观看,91精品啪在线观看国产91九色,日本又黄又粗暴的gif动态图含羞,麻豆国产一区二区在线观看,中文字幕在线二区

SHANGHAI, Dec. 1, 2012 (Xinhua) -- A volunteer (R) helps her colleague put on a red ribbon during an activity to mark the 25th World AIDS Day in east China's Shanghai Municipality, Dec. 1, 2012.The World AIDS Day, which was started in 1988, is observed each year on December 1 to raise the awareness of AIDS caused by the spread of HIV infection. (Xinhua/Ding Ting)