【多选题】
A <{p}><{font _mstmutation="1" _msthash="20530" _msttexthash="17301544"}>扩大销售量<{/font}><{br/}><{/p}>
B <{p}><{font _mstmutation="1" _msthash="20531" _msttexthash="18976581"}>降低固定成本<{/font}><{br/}><{/p}>
C <{p}><{font _mstmutation="1" _msthash="20532" _msttexthash="26167778"}>降低单位变动成本<{/font}><{br/}><{/p}>
D <{p}><{font _mstmutation="1" _msthash="20536" _msttexthash="10736726"}>降低单价<{/font}><{br/}><{/p}>
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