以下程序输出的最后一个值是 【11】 。
int ff(int n)
static int f=1;
f=f*n；
return f;

main()
int i；
for (i=1；i＜=5；i++)printf("%d\n"，ff(i))；

The purpose of the research had a more important meaning for them than_______.

A．ours

B．those of ours

C．it had for ours

D．it did for us