box can be used to manipulate

来源: smartmoney 于 2004-09-14 16:39:07 [] [旧帖] [给我悄悄话] 阅读数 : (63 bytes)
回答: the difference is that you can 由 smartmoney 于 2004-09-14 16:29:52

price. however, that require really large position to do that.

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