1,C13(1)*C4(3)/此搏旁森橡C52(3)2,C48(3)/C52(3)3,C13(3)/C52(3)4,C4(1)*C13(3)/银型C52(3)
1,C13(1)*C4(3)/银型C52(3)2,C4(3)/C52(3)3,C13(3)/此搏旁森橡C52(3)4,C4(1)*C13(3)/C52(3)
问一:1/13*1/13*1/13问二:1/12*1/戚核逗12*1/12问三:高卖氏举1/4*11/51*10/50问四:1/2*25/51*24/50*2