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【简答题】
正功和负功取决于 ( ) 。 A. 力的方向 B. 位移的方向 C. 位移方向间的夹角 D. 力的性质
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参考答案:
举一反三
【单选题】梁平法施工图中梁的平面注写方式有集中标注和 ( )
A.
集中标注
B.
原位标注
C.
梁上标注
D.
梁下标注
【单选题】人体的内呼吸是指( )。
A.
肺泡与毛细血管血液之间的气体交换
B.
毛细血管血液和组织细胞之间的气体交换
C.
细胞器之间的气体交换
D.
细胞内的生物氧化过程
【判断题】大约在五千年前左右,古埃及人创造了历史上第一支口红。
A.
正确
B.
错误
【单选题】Corrective taxes differ from most taxes in that correctivetaxes
A.
enhance economic efficiency, and is also known as a Pigovian tax
B.
do not raise revenue for the government.
C.
cause deadweight loss.
D.
cannot be divided between the buyer and seller.
【判断题】Although regulation and corrective taxes are both capable of reducing pollution, regulation accomplishes this goal more efficiently.
A.
正确
B.
错误
【单选题】Most economists prefer corrective taxes to regulation tocorrect the pollution problem because:
A.
the market-based solution is less costly to society.
B.
the market-based solution can result in a greater reduction in pollution.
C.
the market-based solution raises revenue for the government.
D.
all of the above.
【简答题】大约在五千年前左右,古埃及人创造了历史上第一支___。
【单选题】以下哪种犬的原产地不是中国()
A.
北京犬
B.
贵宾犬
C.
松狮犬
D.
八哥犬
【判断题】计算机联锁具有对室内外联锁设备的检测和监测功能。
A.
正确
B.
错误
【单选题】Most taxes distort incentives and move the allocation ofresources away from the social optimum. Why do corrective taxes avoid thedisadvantages of most other taxes?
A.
Corrective taxes apply only to goods that are bad for people's health, such as cigarettes and alcoh
B.
Because corrective taxes correct for market externalities.
C.
Corrective taxes provide incentives for the conservation of natural resources.
D.
Corrective taxes do not affect deadweight loss.
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