题目内容

For a policy to be socially efficient it must not only be ______-______, but also balance costs with benefits

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Technological change shifts the marginal abatement cost function _________.

A policy is cost-effective if:

A. it achieves a given amount of environmental improvement at the least possible cost.
B. it achieves a given amount of environmental improvement at the highest possible cost.
C. it achieves a low amount of environmental improvement at the least possible cost
D. none of the answers are corect.

Incentives for technological innovations cause:

A. shifts the marginal abatement cost function downward
B. new inventions become public goods
C. encourage new technology
D. All answers are correct.

下列各物理量中,为状态函数的是.........

A. △U
B. U
C. Q
D. W

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