集线器具有“智能记忆”能力和“学习”能力。

A. 对
B. 错

集线器的数据采用广播方式进行数据的传输，其缺点是（）和（）。

goodatsoundinghonestandsincere,especiallywhentryingtotrickpeople.

A. plausible
B. impressive
C. essential
D. vital

ofhighquality;good

A. essential
B. honest
C. fine
D. faithful

followingthestandardsofbehaviorconsideredacceptableandrightbymostpeople

A. moral
B. acceptable
C. excellent
D. conscientious

(pl)behaviorthatisconsideredtobepoliteinaparticularsocietyorculture.

A. foudation
B. quality
C. liar
D. manners

allthequalitiesandfeaturesthatmakeaperson,groupsofpeople,andplacesdifferentfromothers

A. sincere
B. character
C. manners
D. behaviour

tomakesbresponsiblefordoingsthortakingcareofHeentrustedthetasktohisnephew

A. remark
B. entrust
C. dispose
D. discompse

tostateopenlythatyouhaveaparticularbelief,feeling,etc.

A. examine
B. profess
C. intercourse
D. punctual

takingcaretodothingscarefullyandcorrectly

A. serious
B. punctual
C. conscientious
D. public