局域网中常用的介质访问控制方法有:【 】、令牌总线(Token Bus)、令牌环 (Token Ring)。
A) reserved
B) hard-working
C) polite
D) frank
Who is Frank?
A.A colleague of the man
B.A lawyer
C.A judge
D.A criminal
The warning given by Frank Church is___
A.indirect but enthusiastic.
B.direct but passionate.
C.ambiguous but calm.
D.definite but indifferent.
A.To sum up
B.In a word
C.In addition
D.To be frank
On this trip, Frank made a coordinated effort to get along with the press.
A.sedate
B.concerted
C.concrete
D.seclusive
What does Frank advise Lucy to do?
A.Discuss this with her teacher.
B.Tell her parents.
C.Spend more time studying and catch up with others.