等底等高的平行四边形与三角形的面积的比是请选择ABC)e3G(i,t5a2A)o4L(E(e'|'L9f1|;n1\+~
A.0.2:1'L9f1|;n1\+~
B.2:1'L9f1|;n1\+~
C.1:2'L9f1|;n1\+~