题目内容
在步进控制方式中，转换条件可能是若干个信号的与、或、非逻辑组合。
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A policy is efficient if it produces for society a maximum of net benefits and it occurs when marginal abatement costs equal marginal damages.
Efficiency is achieved using Centralised policies and Decentalised policies.
A policy is efficient if it produces for society a maximum of net benefits and it occurs when _______ ______ ____ equal marginal damages.
________ is achieved using Centralised policies and Decentalised policies.
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