Chinese skiers Li Nina (left) and Han Xiaopeng (right) pose with their gold medals from the aerial competitions at the Freestyle Ski World Championships in Madonna di Campiglio in Italy on Saturday, March 10, 2007. Mar.11 - China secured first place in the men's and women's aerial competitions at the Freestyle World Ski Championships on Saturday.Olympic champion Han Xiaopeng won at the men's event with 240.86 points, making him the first Chinese man to win a gold medal at the championships.His teammate, Turin Winter Olympics silver medalist Li Nina gained the top score of 188.05 points in women's aerial competition. She beat her Belarusian rival, Assol Slivets, and veteran Australian competitor Jacqui Cooper to retain her title.The other Chinese female athletes, Guo Xinxin, Wang Jiao and Dai Shuangfei, respectively placed eighth, thirteenth and sixteenth in the competition.