One, Qin Yongmin, 45, of the central city of Wuhan, and the other, Xu Wenli, 55, of Beijing, are being held on suspicion of subversive activities. Qin and Xu became known as democracy advocates in the late 1970s. Foreign Ministry spokesman Zhu Bangzao refused to specify what laws were broken or how Xu Wenli and Qin Yongmin endangered the state. The two more prominent dissidents, Xu and Qin, are likely to face a much longer haul since both have been charged with ``criminal acts''. Xu's and Qin's trouble almost certainly stems from their efforts to gain recognition for the China Democratic Party,