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3．甲方案收益率的标准离差为2.11％，乙方案收益率的标准离差为2.22％，如果甲、乙两个方案预期收益率相同，下列表述正确的是
A
A．甲、乙两个方案的风险相同 B．甲方案的风险高于乙方案的风险C．甲方案的风险低于乙方案的风险 D．无法确定甲、乙两个方案风险的高低
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C
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