一個是不計算利潤, 一個是計算了利潤的.
我覺得都可以, 虧44和虧50都應該算對.
所有跟帖:
• 切,你認真審題了嗎? -梓- ♀ (0 bytes) () 10/22/2010 postreply 03:50:38
• 切,你認真審題了嗎? -梓- ♀ (0 bytes) () 10/22/2010 postreply 03:50:38
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