🔤 字母W
2006普通话共有23个声母,它们是b,p,m,f,d,t,n,l,z,c,s,zh,ch,sh,r,j,q,x,g,k,h,Y,W。 2031Assume that {A, B, C, D} are variables, the domain of each variable is {u, v, w}, and != denotes not equal, select which of the following expressions is a binary constraint on CSP formalism?设{A, B, C, D}为变量,每个变量的域是{u, v, w},且“!=”表示不等于,从如下表达式中选择那个是CSP形式化的2