题目详情我国的本地电话网一般采用有端局和汇接局构成的两级网络结构。汇接网为第一级交换中心,各汇接局之间以()相互连接,且与其汇接区内的端局之间以()网相连。 A.网状,星型 B.星型,总线型 C.总线型,环型 D.环型,网状 请帮忙给出正确答案和分析,谢谢!
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