若x2=20082,则x=( )。
±2008
—Boys and girls, please have a seat and ____.
—Thank you.
A.help yourselves
B.help yourself
C.helps yourself
D.help you
有以下程序 main() int k=5; while(-k) printf("%d",k-=3); printf("\n"); 执行后的输出结果是______。A) 1B) 2 C) 4 D) 死循环