單項選擇題
A.表示層 B.傳輸層 C.應(yīng)用層 D.會話層
A.130.45.130.1 B.130.22.130.1 C.130.12.64.23 D.130.12.167.127
A.0.0.0.121 B.0.0.0.21 C.0.0.0.1 D.0.0.0.120
A.802.12 B.802.11 C.Bluetooth D.HiperLan
A.2 B.4 C.6 D.8