题目

在异步通信中,每个字符包含1位起始位、7位数据位、1位奇偶位和1位终止位,每秒钟传送200个字符,采用4相位调制,则码元速率为(),有效数据速率为()。


A.50波特B.500波特C.550波特D.1000波特
问题2:A.700b/sB.1000b/sC.1400b/sD.2000b/s

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