46）有以下程序 #include structSTU {intnum; floatTotalScore;}; voidf(structSTUp) {structSTUs[2]={{20044,550},{20045,537}}; p.num=s[1].num;p.TotalScore=s[1].TotalScore; } main() {structSTUs[2]={{20041,703},{20042,580}}; f(s[0]); printf("%d%3.0f\n",s[0].num,s[0].TotalScore); } 程序运行后的输出结果是 (A)20045537 (B)20044550 (C)20042580 (D)20041703