自动化检修工（2）

光纤作为传输介质的主要特点是：(____)I．保密性好II．高带宽III．底误码率Ⅳ．拓扑结构复杂

发布于 2021-02-23 18:42:50

【单选题】
A I、II和IV
B I、II和III
C II和Ⅳ
D III和IV

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突突死这帮狗奏 2023-02-23

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