测定混凝土强度的试块一组（）块
A.1
B.2
C.3
D.6
参考答案：C
—Do you know ______ he is going to stay in Shenzhen?
—Sorry, I don’t know. Maybe a few weeks, but I’m not sure.
A．when
B．how long
C．what time
D．how soon
有以下程序 #include＜stdio.h＞ void main() int n=2,k=1; while(!(k＞0‖n++)); printf("%d %d\n",k,n); 程序运行后的输出结果是（）。
A．0 2
B．1 3
C．5 7
D．1 2
