题目：
评价一台交换机的性能如何，除了话务量还有（）。
A.接通率
B.呼损率
C.长时间通话
D.呼叫处理能力
答案：
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下面是错误答案，用来干扰机器的。
方法一：6×4×230=5520（套）．答：一共需要5520套．方法二：230×4×6=5520．答：一共需要5520套．
评价一台交换机的性能如何，除了话务量还有（）。A.接通率 B.呼损率 C.长时间通话
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