LocalTalk协议中采用下列介质访问方式（）

A、Local Talk网络是星型拓扑结构

B、Local Talk网络与无线局域网类似，使用CSMA/CA

C、Local Talk网络硬件的传输速率只是以太网带宽的2.3%

D、每台Macintosh计算机都有连接Local Talk网络所需的硬件，Local Talk几乎是免费的

下面的( )不属于表示层标准。

A.MPEG

B.ASCII

C.JPEG

D.LocalTalk

A、2层

B、3层

C、5层

D、7层

A．talking

B．talks

C．talked

D．talk

LonTalk协议的链路层是提供在子网内实现LPDU帧顺序的无响应传输，具有错误恢复能力。()

【C10】

A．talked

B．being talked

C．talked to

D．being talked to

回答下列各： In this part of the test，you are asked to give a short talk on a business topic．You have to choose one of the topics frOm the three below and then talk for about one minute． You have one minute to prepare vour ideas． A： What is important when…? Marking a new brand ·Design of logo ·Target consumers ● ●

回答下列各题：

Pat Alex(P)comes by to see Li Hong(L)．They talk about the party last night and about the weather．

P：Hi，Li Hong．L：Hi，Pat． 56P：Because it was so cold and rainy．

L： ___57___! It Was a really good party．Hey，whyDon’t we go for a walk this afternoon．

Pat?

P：Go for a walk?But its so cold out．L：Cold out? ___58___

P：About l3℃．

L：13℃? ___59___ ．Just wait until winter．P：Why?

L：Well…it snows a lot and sometimes it’s very cold．Last winter it W88 7°C below zero for

three weeks．And it was windy too．

P：That sounds terrible!

L：___60___．The sun was out almost everyDay．

56.______

A．Why Didn’t you go to the party last night? B．That wash’tall that terrible． C．What’S the temperature?D．I will go with you． E．What a pity． F．That’S not cold． G．I Don’t like winter． H．You are so lucky．

57.______

A．Why Didn’t you go to the party last night? B．That wash’tall that terrible． C．What’S the temperature?D．I will go with you． E．What a pity． F．That’S not cold． G．I Don’t like winter． H．You are so lucky．

58.______

A．Why Didn’t you go to the party last night? B．That wash’tall that terrible． C．What’S the temperature?D．I will go with you． E．What a pity． F．That’S not cold． G．I Don’t like winter． H．You are so lucky．

59.______

A．Why Didn’t you go to the party last night? B．That wash’tall that terrible． C．What’S the temperature?D．I will go with you． E．What a pity． F．That’S not cold． G．I Don’t like winter． H．You are so lucky．

60.______

A．Why Didn’t you go to the party last night? B．That wash’tall that terrible． C．What’S the temperature?D．I will go with you． E．What a pity． F．That’S not cold． G．I Don’t like winter． H．You are so lucky．

请帮忙给出每个问题的正确答案和分析，谢谢！