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问题 单项选择题

为发扬铁路光荣传统，全路加强职业道德建设，通过开展（）和“树标塑形”等活动，培养和造就了一大批路风建设先进集体和先进个人，从整体上保持了铁路的良好路风。

A.“三新”

B.“四新”

C.“五新”

D.“六新”

答案

参考答案：A

单项选择题

Pharming is a scamming practice in which malicious code is installed on a personal computer or server, misdirecting users to (71) Web sites without their knowledge or consent. Pharming has been called "phishing without a lure".
In phishing, the perpetrator sends out legitimate- (72) e-mails, appearing to come from some of the Web’s most popular sites, in an effort to obtain personal and financial information from individual recipients. But in pharming, larger numbers of computer users can be (73) because it is not necessary to target individuals one by one and no conscious action is required on the part of the victim. In one form of pharming attack, code sent in an e-mail modifies local host files on a personal computer. The host files convert URLs into the number strings that the computer uses to access Web sites. A computer with a compromised host file will go to the fake Web site even if a user types in the correct Internet address or clicks on an affected (74) entry. Some spyware removal programs can correct the corruption, but it frequently recurs unless the user changes browsing ( 75 ) .

A．victimized

B．personate

C．identity

D．control
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问答题 简答题

循环冷却水如何防止结垢？
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