盒子里有8个黄球，5个红球，至少摸请选择ABCD.{9w(I*W-f+A7`2L次一定会摸到红球。0w4K(P7i0B,Z;@,j5O.y'l2R5D/e+e6L
A、80w4K(P7i0B,Z;@,j5O.y'l2R5D/e+e6L
B、50w4K(P7i0B,Z;@,j5O.y'l2R5D/e+e6L
C、90w4K(P7i0B,Z;@,j5O.y'l2R5D/e+e6L
D、60w4K(P7i0B,Z;@,j5O.y'l2R5D/e+e6L