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2019ҵУ԰Ƹ⣺ͨÿһ48

2019-03-25 14:17:35| й
2019ҵУ԰ƸΪ˰˳μӿԣɽƸҵģϰԤףλ˳2019ҵУ԰Ƹ⣺ͨÿһ48

ѡ

71.ԸУҪ( )ģʽн롣

A.FTTO B.FTTB

C.FTTN D.FTTH

72.IEEE802.3u̫׼ƶΪ( )

A.10M B.100M

C.1000M D.10000M

73.ADSLAǵ( )ĵһĸ

A.Alcatel B.ATM

C.Access D.Asymmetric

74.( )ADSLķװʽ

A.PPPoA B.PPPoB

C.PPPoC D.PPPoD

75.һõCRC( )

A.ÿһַ B.ܼ99%ϵIJ

C.鲻żλIJ D.żУ鷽ɿ

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