A:复分解反应
B:置换反应
C:化合反应
D:分解反应
Hello ! My name is LiQiang . There are four people in my family . My father is a worker . My mother is a farmer . My little sister is a pupil. I am a pupil , too . We are in the same school .
执行如图所示的程序框图,则输出n的值是 ( )