题目内容

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an (16) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (17) . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages (18) . A. cracker B. user C. customer D. client

As administrators seek to block dangerous email attachments through the recognition of well-known (19) , 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 will still run and successfully infect target users.
B. Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (20) access to your network.

查看答案

搜索结果不匹配？点我反馈

更多问题

A typical (160) language contains an applicative sub-language which approximates the mathematical abstractions of "timeless" functions applied to "spaceless" values, where the actual operation sequences and use of storage space during expression evaluation are organized behind the (161) . In this setting, values are data structures of low volume, typically a few computer words or less, which means that an illusion of spacelessness can be realized by having (162) results during expression evaluation stored at the discretion of the language implementation, and effecting parameter (163) and (164) operations through value copying. （164）是（）

A. assignment
B. design
C. value
D. dispatch

某审计师正在进行分析性复核，将某分公司经营的利润与其他分公司的利润、该分公司以前年度的利润进行比较。该审计师发现该分公司的利润显著增长。在经过初步测试后，他发现本年度该分公司的产品生产方式及管理部门均没有任何变动。基于上述信息，利润增加的最可能原因是：

A. 销售同样产品的竞争者数量增加。
B. 该分公司生产的产品所需要原材料的供应商数量减少。
C. 年末存货高估。
D. 年末应收账款低估。

While most recent attention in the AI field has been focused on expert system software, AI (66) has also seen dramatic advances. Activity in the past years was characterized by new low-cost, powerful Lisp machines, the introduction of AI workstations, Lisp compilers becoming available for all major professional and engineering workstations, and the personal computer emerging as a (67) . tool for expert system development. The next few years will see this technology evolves further.Because the (68) of an AI computer represents a sizable investment, companies should carefully (69) all options that are available as well as have a good idea of what the next generation of systems will offer in order to (70) the optimum system. This publication provides the information necessary to gain this understanding. （70）是（）

A. choice
B. read
C. important
D. software
E. hardware
F. significant
G. emergence
H. survey
I. purchase
J. select

某内部审计师运用每单位均值抽样计划来估计维修复印机的平均成本。样本量是50台，总体规模是2000台。样本的平均值是75美元，标准离差是14美元，平均数的标准离差是2美元，在置信水平为95%（Z=2）时，置信区间是多少（）

A. 47～103美元。
B. 71～79美元。
C. 61～89美元。
D. 73～75美元。