下面平面度符号是（）。
A.
B.〇
C.
D.
参考答案：D
—How many gold medals did China at the 2010 Winter Olympics?
—Five. [ ]
A. win
B. to win
C. winning
D. won
以下程序段的执行结果为______。 #define PLUS(X,Y)X+Y main() { int x=1,y=2,z=3,sum; sum=PLUS(x+y,z)*PLUS(y,z);printf("SUM=%d",sum)； }
A．SUM=9
B．SUM=12
C．SUM=18
D．SUM=28
