单项选择题
A. 3 B. 6 C. 9 D. 2
A. x=y=5; B. x=n%2.5; C. x+n=i; D. x=5=4+1;
A. 1,2,3,4,5,6,7,8,9,10, B. 1,2,3,4,10,12,14,16,9,10, C. 1,2,6,8,10,12,7,8,9,10, D. 1,2,6,8,10,12,14,16,9,10,