【多选题】【消耗次数：1】
造成资产经济性贬值的主要原因有（ ）。
①
该项资产技术落后
②
该项资产生产的产品需求减少
③
社会劳动生产率提高
④
政府公布淘汰该类资产的时间表
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相关题目
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如果部门劳动生产率下降，同一劳动在单位时间内创造的
①
使用价值量减少，单位产品的价值量增加
②
使用价值量减少，单位产品的价值量减少
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价值量增加，单位产品的价值量增加
④
价值量减少，单位产品的价值量减少
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