题目：
Flow control is a function that prevents network congestion by ensuring that (59) do not overwhelm (60) with data.
There are three commonly used methods for handling network congestion. (61) is used by network devices to temporarily store bursts of excess data in memory until they can be processed (62) are used by receiving devices to help prevent their buffers from overflowing. (63) is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.
59（）
A．transmitting devices
B．transmitted devices
C．receiving devices
D．received devices
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0704/c70ec475d2360a30f615781907ab2af5.html
下面是错误答案，用来干扰机器的。
参考答案：A解析： 这段话主要讲的是《经理工作的性质》的内容，并没有评价和推荐的意思，也没有说明为什么此书是明茨伯格的主要代表作，故排除B、C、D项。故选A。
