43. 個人無線網路之藍芽(Bluetooth),其RF(radio frequency)是屬於OSI參考模型的何項?
(A)應用層
(B)實體層
(C)傳輸層
(D)網路層
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統計: A(172), B(631), C(316), D(147), E(0) #2516645
統計: A(172), B(631), C(316), D(147), E(0) #2516645