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问题 单项选择题

对换卡车的操作处理正确的是（）。

A.按核实后的入口站收取通行费

B.按网内入口站最远的站收取通行费

C.按核实后的入口站收取通行费，并加收2倍通行费

D.按网内入口站最远的站收取通行费，并加收2倍通行费

答案

参考答案：D

单项选择题

肝硬化患者肝功能减退的临床表现不包括

A．齿龈出血

B．脾大

C．黄疸

D．水肿

E．肝掌
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单项选择题

Melissa and LoveLetter made use of the trust that exists between friends orcolleagues．Imagine receiving an (71) from a friend who asks you to open it．This is whathappens with Melissa and several other similar email (72) ．Upon running，such wormsusually proceed to send themselves out to email addresses from the victim’s address book，previous emails，web pages (73) ．

A．cracker B．user C．customer D．client

As administrators seek to block dangerous email attachments through the recognition ofwell—known (74) ，virus writers use other extensions to circumvent such protection．Executable(.exe)files are renamed to．bat and．cmd plus a whole list of other extensions and wilt still runand successfully infect target users．
Frequently，hackers try to penetrate networks by sending an attachment that
looks like a flash movie，which，while displaying some cute animation，simultaneouslyruns commands in the background to steal your passwords and give the (75) access to yournetwork．
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