17.下列何者為IEEE802.16e中的固定醒睡週期省電模式?
(A)Power Saving Classes of type I
(B)Power Saving Classes of type II
(C)Power Saving Classes of type II
(D)Power Saving Classes of type IV

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統計： A(14), B(73), C(22), D(17), E(0) #2407601