图中甲、乙是两种声音的波形图,从图形可知:图_____是乐音的波形,图_____是噪声的波形。
甲;乙
维纳是以下哪一个管理科学理论学派的代表人物()
A.信息论学派
B.耗散结构学派
C.控制论学派
D.系统论学派
As the city has become increasingly ______ and polluted, there has been a growing realization that certain action urgently needed.A. flourished B. boosted C. congested D. mingled