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【多选题】
GP88 UHF和VHF对讲机使用的是68HC11A8微处理器U401，应用：7.9488MHz时钟速度、
A.
16位地址线
B.
内部监控电路
C.
模/数转换输入端口
D.
多路8位地址/ 数据总线
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】According to a survey, which was based on the responses of over 188,000 students, today"s traditional-age college freshmen are "more materialistic and less altruistic (利他主义的 )" than at any time in the...
A.
have never been so materialistic as today
B.
have never been so interested in the arts
C.
have never been so financially well off as today
D.
have never attached so much importance to moral sense
【单选题】假设微处理器的主频为50MHz，两个时钟周期组成一个机器周期，平均三个机器周期完成一条指令，则它的机器周期是(6)ns，平均运算速度约为(7)MIPS。
A.
20
B.
40
C.
60
D.
100