【单选题】【消耗次数：1】
MCS-51单片机的CPU是____。
①
4位
②
8位
③
16位
④
32位
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【单选题】
MCS-51系列单片机是1978年由推出的高性能8位单片机，其衍生产品至今仍广泛应用于日用家电产品中。
①
编程方法难学、不易掌握
②
功能强，性能价格比低
③
硬件配套齐全，用户使用方便，适应性强
④
设计、安装、调试和维修工作量大
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