[名词解释] 异附加系(alien addition line)
[名词解释] 替换(substitution)
[主观题]Substitution rue 替代原则
[名词解释] Substitution rue 替代原则
[名词解释] 替代效应(Substitution effect)
[主观题]Substitution effect(of a price change)(价格变动的)替代效应
[名词解释] Substitution effect(of a price change)(价格变动的)替代效应