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【单选题】
按道一琼斯分类法，大多数股票被分为 ( )A.
制造业、建筑业、邮电通信业
B.
制造业、交通运输业、工商服务业
C.
工业、商业、公共事业
D.
公共事业、工业、运输业
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反馈参考答案：
举一反三
【单选题】下列关于热辐射的说法不正确的是:( )
A.
在辐射换热的过程中包含能量形式的转换
B.
一切绝对温度高于 0 K 的物质均能产生热辐射
C.
辐射传热不需要任何介质作媒介
D.
热辐射不能在真空中进行
【单选题】Ricardian equivalence argues that when the government
A.
increases taxes and raises its deficit, consumers anticipate that they will face higher taxes later to pay for the resulting government debt, thus people will raise their own private saving to offset the fall in government saving.
B.
cuts taxes and decreases its deficit, consumers anticipate that they will face higher taxes later to pay for the resulting government debt, thus people will raise their own private saving to offset the fall in government saving.
C.
cuts taxes and raises its surplus, consumers anticipate that they will face higher taxes later to pay for the resulting government debt, thus people will raise their own private saving to offset the fall in government saving.
D.
cuts taxes and raises its deficit, consumers anticipate that they will face lower taxes later to pay for the resulting government debt, thus people will raise their own private saving to offset the fall in government saving.
E.
cuts taxes and raises its deficit, consumers anticipate that they will face higher taxes later to pay for the resulting government debt, thus people will raise their own private saving to offset the fall in government saving.
【单选题】When there are not enough volunteers for the armed forces, the government ______ additional men.
A.
revises
B.
encourages
C.
suspends
D.
conscripts
【简答题】带负荷操作隔离开关可能造成弧光短路。()
【判断题】When the government budget deficit rises, national saving is reduced, interest rates rise, and investment falls.()
A.
正确
B.
错误
【简答题】When does government become a 'consideration of convenience'?
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