一个英文老师出了一道这样的难题, 7z=zJ4C
题目是这样子的: D~i m1h;>
____is bette rthan the god. 5 B lptC
____is worse than the evil. ?/@~d
if you eat____,you will die. Rt[zZv
(三个空格必须是同一个字) eXqS9`zKr
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Gs% cod
设上帝之善是+∞ EN =oA P
恶魔之恶是-∞ 5ZRO{rf
令所求为x &GC`4!H
则x>+∞ g0P^O@8
x<-∞ x!A.**
∴x属於空集合 0?tn.<'B8T
∴x=nothing %$)[qa3
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answer: pa6.Tp>
nothing is better than the god. TfYXF`d
nothing is worse than the evil. 4|9c+^%^
if you eat nothing,you will die.