At 17, Jicheng Qian watched 'Rambo' and 'The Terminator.' At 23, he decided to bulk up his 5-foot-6 frame. Now 42 and retired from competition, he lives in Alhambra, his apartment serving as headquarters for the World Assn. of Chinese Bodybuilding. Its mission statement: 'We are aiming to show the world a new image of the Chinese people.'Jicheng Qian barely noticed the pungent mix of sweat and tanning oil.