---I have enjoyed the party so much, but I have to go home now, it’s too late.

--- _______________

A．Have another try.

B．What a pity!

C．Congratulations.

D．It’s a pleasure.

有如下程序 public class Sun { public static void main(String args[ ]) {int x=1,a=0,b=0;switch(x){ case 0:b++; case 1:a++; case 2: a++; b++; }System.out.println("a="+a+","+"b="+B) } }该程序的输出结果是( )。

A．a=2，b=1

B．a=1，b=1

C．a=1，b=0

D．a=0，b=0