在△ABC中,∠C=90°, AB=5,则AB2+AC2+BC2=( )。
50
I don't suppose anyone will volunteer, ________?[ ]
A. do I
B. don't I
C. will they
D. won't they
有以下程序: #include <stdio.h> #define S(x)4*(x)*x+1 main() int k=5,j=2; printf("%d\n",S(k+j)); 程序运行后的输出结果是
A) 197 B) 143 C) 33 D) 28