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【简答题】
按地理位置分类,计算机网络可以分为局域网( )、城域网( )、广域网( )、个人网(Personal Area Network,PAN),请在括号中写出它们的英文简称。
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举一反三
【单选题】The effect of free surface on initial stability depends upon（）.
A.
the amount of liquid in the compartment
B.
the dimensions of the liquid surface and the vessel's displacement
C.
only the length of the compartment
D.
the vertical position of the liquid in the vessel
【简答题】无双亲的,孤儿的
【单选题】Other things the same, when the government spends more, the initial effect is that ( )
A.
aggregate demand shifts right.
B.
aggregate demand shifts left.
C.
aggregate supply shifts right.
D.
aggregate supply shifts left.
【单选题】A severe drought has damaged this year's lettuce crop. The initial effect on the lettuce market is a
A.
decrease in the demand for lettuce.
B.
decrease in the supply of lettuce.
C.
decrease in both the demand and supply of lettuce.
D.
rightward movement along the demand curve for lettuce.
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