Volunteers ride bicycles around the West Lake to hold an AIDS awareness activity in Hangzhou, capital of east China's Zhejiang Province, November 30, 2008. The World AIDS Day falls on December 1. This year's theme is "Stop AIDS. Keep the Promise."

University students hold an AIDS awareness activity at the Tianta Park in Tianjin, north China, November 30, 2008. The World AIDS Day falls on December 1. This year's theme is "Stop AIDS. Keep the Promise."