题目内容

在单总线结构的CPU中，连接在总线上的多个部件________。

A. 某一时刻只有一个可以向总线发送数据，并且只有一个可以从总线接收数据
B. 某一时刻只有一个可以向总线发送数据，但可以有多个同时从总线接收数据
C. 可以有多个同时向总线发送数据，并且可以有多个同时从总线接收数据

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