请大家指点一下p到底是selling price 还是total cost which includes tax.
原题中提到：
someone can buy a computer for p1 dollars in city A, while the sales tax is t1. He can also buy the same computer for p2 dollars in city B, while the tax is t2. question: Is the total cost of computer in A greater than the cost in B?
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发表于 2009-1-11 03:59:00
