一道SAT概率题求解TOT 之前有人问过,可是过程没看明白.能否详细点= =A,B,C,D ,E ,F,Ga list consists of all possible three-letter arrangements formed by using the letters above such that the first letter is D and one of the remain

来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 22:27:24
xn@_宑q(;'$yq2nGg*~5EbPeS6V+$F/㿼wRZ K$l;~gε&7v>I~2,?o?jCz6ʢ|˽ymv|8tO |vX,gu=i!:+|+.σ@(B))0oPrTB Nz TR) xBA:X&e~I}¸_6UF]aPe.*}=n#CqU+ pW>ʢ 냢hJ_3-uHy,W]3ҡjwZа {qFqti9zZ,vy6GQ */U16h.>[`crصVmq}JѺN/QWin.XeT@xC)N