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【单选题】
1偏瘫上肢两种协同运动出现的顺序是A.
屈肌通常先于伸肌
B.
屈肌通常晚肌
C.
两者同时出现
D.
两者出现的先后不定
E.
以上都不对
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举一反三
【单选题】Monopolistic competition differs from perfect competition primarily because______.
A.
in monopolistic competition, firms can differentiate their products
B.
in perfect competition, firms can differentiate their products
C.
in monopolistic competition, entry into the industry is blocked
D.
in monopolistic competition, there are relatively few barriers to entry
【简答题】平面交叉口有何交通特征?如何减少或消灭交叉口冲突点?
【单选题】One difference between perfect competition and monopolistic competition is that
A.
a perfectly competitive industry has fewer firms.
B.
in perfect competition, firms produce slightly differentiated products.
C.
monopolistic competition has barriers to entry.
D.
firms in monopolistic competition face a downward-sloping demand curve.
【单选题】The gains from free trade are enjoyed by a ________ number of people and the costs of free trade are imposed by ________ number of people.
A.
small; large
B.
large; small
C.
small; small
D.
large; large
【简答题】平面交叉口有何交通特征？如何减少或消灭交叉口冲突点？
【单选题】An example of' product in monopolistic competition is ______ .
A.
corn
B.
electricity
C.
airline tickets
D.
coffee
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