*Vertices 2
1 "数学的实践与认识" 0.0 0.0 0.0 x_fact 25.454545 y_fact 47.272727
2 "系统工程理论与实践" 0.0 0.0 0.0 x_fact 1.363636 y_fact 52.727273
*Matrix 
0.000000 0.776261 
0.776261 0.000000