别笑我新。。
如何设置 止损点?是指成本,还是心理价位?
期权,hedge有入门指南么?10多年前书本学过。。忘得一干二净。
别笑我新。。
如何设置 止损点?是指成本,还是心理价位?
期权,hedge有入门指南么?10多年前书本学过。。忘得一干二净。
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