证券的代理买卖、自营买卖业务；
自营商的利润或损失来自于同一证券的买卖价差。
The dealer's profit or loss is the difference between the price paid and the price received for the same security.
自营商的利润或损失来自于同一证券的买卖价差。
The dealer's profit or loss is the difference between the price paid and the price received for the same security.
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