GWD 13-23

bryan0806

Q23:

In the decimal representation of x, where 0 < x < 1, is the tenths digit if x nonzero?

(1)      16x is an integer.

(2)      8x is an integer.

左右想不通 请指点一下 谢谢!! 还有那个if x 应该是of x吧?                  

bryan0806

http://forum.chasedream.com/dispbbs.asp?boardid=22&star=1&replyid=647037&id=54854&skin=0&page=3

找到了!!