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【单选题】
将森林转换为对应的二叉树，若在二叉树中，结点u是结点v的父结点的父结点，则在原来的森林中，u和v可能具有的关系是 I．父子关系 II.兄弟关系 III. u的父结点与v的父结点是兄弟关系A.
只有II
B.
I和II
C.
I和III
D.
I、II和III
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【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】阅读理解。 The government may control prices when there is a problem such as rapidly increasing rents or a rise in the cost of living. When the government controls prices, there is no longer a normal relat...
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