一个英文老师出了一道这样的难题, .=u8`,sO
题目是这样子的: n}T;q1
____is bette rthan the god. .dr-I7&!
____is worse than the evil. tt%lDr1A)
if you eat____,you will die. ;`(l)X+7
(三个空格必须是同一个字) :RqTbE4B
InCJ4D
^rP`
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u*:;O\6l
设上帝之善是+∞ AfV
a[{E
恶魔之恶是-∞ bt2`elH|
令所求为x 0~;Owu
则x>+∞ @h91: hb
x<-∞ ?[`*z?}
∴x属於空集合 gTby%6-\|
∴x=nothing ov@N13 ,$
u6pfc'GG g
answer: =MP?aH
[
nothing is better than the god. c[n4{q1
nothing is worse than the evil. Q^_*&},V
if you eat nothing,you will die.