(原雞$8)-(賣$9)=-$1 (賺$1)
$ u) y3 ]: c# ]" Z2 X0 \公仔箱論壇% P: m) s. F& O# |; O
(以$10)-(買回原雞$8)=$2 (蝕$2)
* H7 I! f% L B4 i公仔箱論壇5.39.217.77:88982 [7 ^" J% [* m; Z" z
($10雞)-(賣$11)=-$1 (賺$1)5.39.217.77:8898$ c% t- ]$ m& w G3 {
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總計=賺$1 蝕$2 賺$1tvb now,tvbnow,bttvb8 ?! E7 E7 X! U _6 P/ w. l
; o" o& ?* k8 O+ X試問賺2蚊再蝕2蚊...公仔箱論壇2 ?6 U0 D" e P
4 K8 M1 U% s4 F8 H4 ^0 j5 X3 r
答案=0 |