过平面内的两点,可画请选择CBA*a1[;n4V8V5R3p6m3})?+c条直线。2P:F1^1X0x.S.g8c7u8H5S(g
A.12P:F1^1X0x.S.g8c7u8H5S(g
B.22P:F1^1X0x.S.g8c7u8H5S(g
C.32P:F1^1X0x.S.g8c7u8H5S(g