某班人数是45人,该班男女生人数的比可能是请选择ABCD3W,j*S(a,t7b2g;u;v7I1]+D2v4q)V'['|0}7s+M
A.3:41]+D2v4q)V'['|0}7s+M
B.4:31]+D2v4q)V'['|0}7s+M
C.3:21]+D2v4q)V'['|0}7s+M
D.5:21]+D2v4q)V'['|0}7s+M