有以下程序struct S{int n；int a[20]；}；void f(int * a,int n){int i;for(i=0；iB．3,4,2,7,9,8,6,5,11,10,
C．2,3,1,6,8,7,5,4,10,9,
D．1,2,3,6,8,7,5,4,10,9,