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【单选题】
当总供给曲线处于凯恩斯区间时，总需求增加的结果使得A.
国民收入增加，价格水平不变
B.
国民收入减少，价格水平不变
C.
国民收入增加，价格水平上升
D.
国民收入减少，价格水平下降
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【单选题】Which of the following will become the RID of a router by default if a router contains both logical and physical interfaces?
A.
The lowest IP address of any physical interface
B.
The highest IP address of any physical interface
C.
The lowest IP address of any logical interface
D.
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A.
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B.
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C.
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D.
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E.
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A.
s
B.
z
C.
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A.
'\0'
B.
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C.
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