能否告诉你一般做几个contracts? 5, 10? 20?
所有跟帖:
• today -新手丙- ♂ (3 bytes) () 03/17/2015 postreply 12:16:23
• 谢谢. 那风险不算太大, 资金也不需太多. -Freewilly- ♂ (68 bytes) () 03/17/2015 postreply 12:22:24
• today -新手丙- ♂ (3 bytes) () 03/17/2015 postreply 12:16:23
• 谢谢. 那风险不算太大, 资金也不需太多. -Freewilly- ♂ (68 bytes) () 03/17/2015 postreply 12:22:24
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