下图中有几个平行四边形?请选择CBA2r+@8F8c5R6?/Q,k)Z(q*u,p2V(H.q(d-L,y0u7D
A.42V(H.q(d-L,y0u7D
B.72V(H.q(d-L,y0u7D
C.92V(H.q(d-L,y0u7D