*Vertices 2 1 "职业与健康" 0.0 0.0 0.0 x_fact 56.201550 y_fact 56.201550 2 "现代预防医学" 0.0 0.0 0.0 x_fact 43.798450 y_fact 43.798450 *Matrix 0.000000 0.429934 0.429934 0.000000