一个英文老师出了一道这样的难题, w?M"`O(
题目是这样子的: ,[dvs&-*
____is bette rthan the god. n!Y}D:6c6
____is worse than the evil. l0Z K)
if you eat____,you will die. `fG<iBD
(三个空格必须是同一个字) +br'
2Pn
F8/n ;
DF Rgn
i 3$G)W
设上帝之善是＋∞ Pj BBXI1i
恶魔之恶是－∞ )Q}Q -Zt
令所求为x J{XRltI+
则x＞＋∞ T@zp'6\H
x＜－∞ 8f%OPcr&
∴x属於空集合 ?zVE7;r4U
∴x=nothing G<`(d@g
*;F<Q!i&v
answer: z fy(j
nothing is better than the god. G$CSZrP.
nothing is worse than the evil. Yz EOfHL,
if you eat nothing,you will die.
