图形推理:请从所给的四个选项中,选择最适合的一个填在问号处,使之呈现一定的规律性。
第50题:
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A.constructed B.concentrated C.devoted D.developed
运量波动系数反映了客货运量在时间上的不均衡性,其表达式为()。
12 The President made a brief visit to Beijing.
A short B working C formal D secret
9The great change of the city astonished all the visitors
A scared B surprised
C excited D moved