在国际上一些大公司中，下属的权力与工作总是集中的是_______。

听力原文： Bill is probably the world's unluckiest lover as well as one of the most persistent. His troubles began last September when he fell in love with Vivian at first sight. At first, Bill. tried traditional methods. He sent her flowers and wrote her several letters and poems. She ignored them. Then Bill decided to try out the power of music. He bought a guitar and practiced hard for a whole month before playing outside her bedroom window one night. She poured a bucket of water over his head. Yet, Bill was not the type to give up easily. He bought a ring and waited outside her house. When Vivian came out to go to work, Bill went down on his knees immediately and told Vivian he would not get up until she agreed to marry him. Vivian left him alone and went off to work. All his attempts ended in vain and Bill decided to kill himself. The first idea that flashed into his mind was to throw himself in front of a train, but he fell between the rails and the train passed safely over him. Next he jumped in front of a bus, but the bus driver braked in time, and he only suffered some cuts and bruises. Then Bill promised to himself that he would never attempt to commit suicide again. Unfortunately, on his way home, he was struck dead by a falling flowerpot.(23)A．He fell in love with Vivian.B．He began to practice guitar.C．He was rejected by Vivian.D．He decided to commit suicide. 点击查看答案

管理人员在希望降低职工流动率时可以采取的方法首先是_______。

A.降低职工工资
B．加强对职工的监督
C．雇用新员工
D．发现职工流动的原因

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