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【多选题】
广义最小二乘法的特殊情况是A.
对模型进行对数变换
B.
加权最小二乘法
C.
数据的结合
D.
广义差分法
E.
增加样本容量
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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