(原雞$8)-(賣$9)=-$1 (賺$1)
7 c8 O7 [5 S+ F7 y/ htvb now,tvbnow,bttvb
: h: o, e3 z- w6 {; Q8 H0 [: d(以$10)-(買回原雞$8)=$2 (蝕$2)tvb now,tvbnow,bttvb! Q/ m7 N; }. ?* q6 O. _, U
5.39.217.77:88988 }9 k' x/ B/ h$ n& K6 m% b
($10雞)-(賣$11)=-$1 (賺$1)
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總計=賺$1 蝕$2 賺$1
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試問賺2蚊再蝕2蚊...tvb now,tvbnow,bttvb8 z* w& q, U3 o1 M7 i
公仔箱論壇1 F: b, n6 C0 t
答案=0 |