A.1ms, B.2ms, C.3ms, D.0.5ms.
A.OFDM, B.16QAM, C.64QAM, D.QPSK.
A.自適應(yīng)調(diào)試編碼, B.turbo編碼, C.靜態(tài)編碼, D.動態(tài)編碼.