单项选择题X 纠错
A.2Mb/s,8Mb/s,34Mb/s,140Mb/s
B.1.5Mb/s,6.3Mb/s,45Mb/s,274Mb/s
C.155Mb/s,622Mb/s,2.5Gb/s,10Gb/s
D.52Mb/s,155Mb/s,466Gb/s,622Mb/s……10Gb/s
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问答题
单项选择题
A.C-12->VC-12->TU-12->TUG-2->VC-3->AU-4->AUG
B.C-12->VC-12->TU-12->VC2->TUG-2->TUG-3->AU-4->AUG
C.C-12->VC-12->TU-12->TUG-2->TUG-3->VC-4->AU-4->AUG
D.C-12->VC-12-->TU-12->TUG-2->VC-3->TUG-3->AU-4->AUG
单项选择题
A.CMI码、HDB3码、NRZ码、CMI码、NRZ码
B.HDB3码、CMI码、CMI码、NRZ码、NRZ码
C.CMI码、CMI码、CMI码、NRZ码、CMI码
D.HDB3码、HDB3码、NRZ码、CMI码、CMI码