【多选题】
A <{p}><{font _mstmutation="1" _msthash="20495" _msttexthash="9546147"}>阶梯法<{/font}><{br/}><{/p}>
B <{p}><{font _mstmutation="1" _msthash="20496" _msttexthash="11092393"}>散布图法<{/font}><{br/}><{/p}>
C <{p}><{font _mstmutation="1" _msthash="20497" _msttexthash="12716847"}>高低点法<{/font}><{br/}><{/p}>
D <{p _msthash="123084" _msttexthash="249821117"}><{font _mstmutation="1" _msthash="109293730" _msttexthash="14448915"}>回归分析法<{/font}><{br/}><{/p}>
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