探讨数学JJ92题，有疑问（0可以被整除）

wangxiaoqing

92. c/d是有理数

1)    c 能被60整除

2)    d 能被 250整除

机经作者答案B 

我:这题貌似选C

should be E

consider 60/(250*7) versus 60/(250*2)

wangxiaoqing

a rational number is a number which can be expressed as a quotient of two integers

do not know if 0/0 would be count as a rational number, need help