1)通常,高回报伴随高风险。
2)只冒必须冒的风险。
3)每笔交易下注大小由能亏的金额决定。
1)通常,高回报伴随高风险。
2)只冒必须冒的风险。
3)每笔交易下注大小由能亏的金额决定。
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我一般
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02/22/2025 postreply
19:19:18
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