Data Sufficiency
试题详情
题目：
For any positive integer x, the 2-height of x is defined to be the greatest nonnegative integer n such that 
is a factor of x . If k and m are positive integers, is the 2-height of k greater than the 2-height of m ?
is a factor of x . If k and m are positive integers, is the 2-height of k greater than the 2-height of m ?(1) 
(2) 
is an even integer.
is an even integer.选项:
答案:
B
