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【单选题】
在供给曲线不变而消费者的收入水平提高引起需求曲线右移的情况下，新的供求均衡点相对原来的均衡点会发生变化，出现( )。A.
均衡数量增加，均衡价格下降
B.
均衡数量增加，均衡价格上升
C.
均衡数量减少，均衡价格上升
D.
均衡数量减少，均衡价格下降
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举一反三
【单选题】Why is George White not satisfied with the concept sketches?
A.
Because the shuttle elevators cannot meet his requirements.
B.
Because the elevator system is not efficient.
C.
Because there are several shuttle elevators.
D.
Because they were black-and-white sketches.
【简答题】A．ashes B．bones C．corpses D．sketches
【单选题】A _____ estimate prepared from layouts, sketches and flowsheets, should be accurate within (-10, +25%). A . Parametric
B.
. Definitive.
C.
. Budget
D.
. Bottom up.
E.
. Top down.
【单选题】59 A _____ estimate prepared from layouts, sketches and flowsheets, should be accurate within (-10, +25%).
A.
Parametric
B.
Definitive.
C.
Budget
D.
Bottom up.
E.
Top down
【简答题】在数据库设计时,为什么涉及多种数据模型?
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