判断题
组合的标准差等于组合中资产的标准差的加权平均值。（）
错误(↓↓↓ 点击‘点击查看答案’看答案解析 ↓↓↓)
He hated being（） (scold) by his father when he failed the exam.
If you want a (promote) （）, you need to do better than now.
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