【简答题】已知某白炽灯的额定参数为220V/100W,其两端所加电压为u=220sin(314t)V。试求: (1)交流电的频率; (2)白炽灯的工作电阻; (3)白炽灯的有功功率。
【单选题】We will highlight Frederick Taylor's scientific management, Henri Fayol's modern operational management theory, and Elton Mayo and F. J. Roethlisberger's Hawthorne studies. Which is closest in meaning...
【单选题】梅奥(George Elton Mayo。1880w1949)以著名的霍桑试验(Hawthorne Experiment)为基础。开创性地探索了员工在企业生产中的人群关系,系统研究了作为( )的员工及其社会需要的满足问题。最终创立了人际关系学说。
【判断题】Elton Mayo's "Hawthorne Experiment" was the focal point of the Human Relations Movement, which emphasized the importance of the human element in job design.
【单选题】第二次世界大战期间,德国于1944年9月研制成功了V-2导弹,其发明者为()
【简答题】影响哈希表中关键字比较次数的因素有三个:____________、______________以及___________________。
【单选题】What’s the Mayo Clinic?
A.
It’s a nonprofit medical center in the United States.
B.
It’s a nonprofit medical center in the United Nations.
C.
It’s a nonprofit health center in the United States.
D.
It’s a nonprofit health center in the United Nations.
【单选题】霍桑实验的主持者是( )。 A.梅奥(Elton Mayo) B.霍桑(Hawthorne) C.泰勒(F.W.Taylor) D.斯科特(W.D.Sco
A.
霍桑实验的主持者是( )。 A.梅奥(Elton Mayo)