大家好, 询问两个问题, 希望大家解释一下:
1.Of the positive integers that multiple of 30 and are less than or equal to
360, what fraction are multiple of 12?
(A)1/6 (B)1/5 (C)1/3 (D)2/5 (E)1/2[Ans.]
这题主要是题目看不懂!
2. If a and b are integers and a-b=6, then a+b CANNOT be
(A)0 (B)less than 6 (C)greater than 6
(D)an even integer (E)an odd integer[Ans.]
B、C、D、E 都能理解,怎么想都想不到为什么不是(A)0?
感谢大家!