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【单选题】
When a market is characterized by an externality, the governmentA.
a. can correct the market failure only in the case of positive externalities.
B.
b. can correct the market failure only in the case of negative externalities.
C.
c. can correct the market failure in the case of both positive and negative externalities by inducing market participants to internalize the externality.
D.
d. cannot correct for externalities due to the existence of patents.
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举一反三
【多选题】汽车是一个复杂的振动系统，在讨论汽车振动系统时，应进行简化，一般对车身质量主要考虑（）三个自由度，四个车轮质量简化为四个垂直自由度，共七个自由度。
A.
垂直
B.
横摆
C.
侧倾
D.
俯仰
E.
侧移
【简答题】什么是对象捕捉 ?什么是运行捕捉模式与覆盖捕捉模式?
【单选题】—Why are you going to ____ from that company? Don’t forget it’s a h igh-paid job. —Because I don’t like the way they _____ me.
A.
leaves; think
B.
retired ; regard C resign; treat D. design; behave
【简答题】Excel 2010中,想要删除图表,先选中工作表中的图表,然后按____键就可以直接将其删除。
【单选题】—Why are you going to _________ from that company.Don’t forget it’s a high-paid job? —Because I don’t like the way they _________me.
A.
leave;think
B.
retire;regard
C.
resign;treat
D.
design;behave
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