执行以下代码段后,x,a,和b的值为? intx,a=6,b=7; x=a+++b++; re A.x= 15, a=6, b=7 B.x= 13, a=7, b=8 C.x= 13, a=6, b=7 D.x= 15, a=7, b=8 执行以下代码段后,x,a,和b的值为? intx,a=6,b=7; x=a+++b++; re A.x= 15, a=6, b=7 B.x= 13, a=7, b=8 C.x= 13, a=6, b=7 D.x= 15, a=7, b=8 正确答案:B