单项选择题
A.CSMA B.CDMA C.CSMA/CD D.CSMA/CA
A.仅Ⅰ B.仅Ⅱ C.仅Ⅲ D.仅Ⅰ、Ⅱ
A.0 B.1 C.2 D.4
A.192.168.2.0, 255.255.255.128, 192.168.1.1 B.192.168.2.0, 255.255.255.0, 192.168.1.1 C.192.168.2.0, 255.255.255.128, 192.168.1.2 D.192.168.2.0, 255.255.255.0, 192.168.1.2
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