(Beijing, February 24) The "Good Luck Beijing" 2008 16th FINA Diving World Cup entered its sixth day, in the women's synchronized 3m springboard preliminaries staged at 2 p.m., Chinese duo Wu Minxia/Guo Jingjing finished first expectedly with a total score of 345.60pts, followed by the U.S. duo Ariel Rittenhouse/Kelci Bryant by a margin of 29.40pts.