rhythm88

亏1元。。
  }; F: _" Y9 i$ D) d% v原本是可以赚三元的，现在利润是两元，所以赚少了1元  o2 Y! l: a* l: F- B. o
accounting profit = $2% P0 a' {6 y" _
but, economic profit = -$1

dennis_78

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lever001

+2yuan( j% f4 {$ Q7 d" h; a' b5 m) b
-2yuan TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。2 e$ h. t) f! k7 W7 S. r
2yuan

如夢

lets see

PeterCBWang

earned 2 dollars

skycity1

i like to know answer

siwang55

2蚊.....

JBao

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5503170

究竟系几多啊

leebillb

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winwin1114

2 dollars

pcmcia

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chiatsut8855

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btoo416

$2 haha....