【判断题】According to Two-Factor theory, there are two groups of factors that influence job satisfaction and employee motivation. The first are hygienic factors,The second group are called motivating factors.(...
【单选题】某三角形联接的纯电容负载接于三相对称电源上,已知各相容抗 X C = 6 W ,线电流为 10 A ,则三相视在功率 ( ) 。
【简答题】生态因子 ecological factor
【单选题】The ecological fallacy refers to drawing conclusions about individuals based solely on the observation of groups.
【单选题】某三角形联接的纯电容负载接于三相对称电源上,已知各相容抗等于6欧姆,线电流等于10A,则三相视在功率为( )VA
【简答题】生态位(ecological niche)
【判断题】在振幅一定,角频率已知的情况下,简谐振动的物体在任意时刻的运动状态(速度、加速度)完全取决于位相。
【简答题】某三角形联接的纯电容负载接于三相对称电源上,已知各相容抗Xc= 6W,线电流为10A,则三相视在功率( )VA。
【单选题】西方“Ecological Civilization”是由Roy Morrison在哪部著作中首次提出?
B.
Ecological Civilization
C.
Sustainable Development