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问题 多项选择题

十八届三中全会作出“使市场在资源配置中起决定性作用”的定位，有利于()

A、在全党全社会树立关于政府和市场关系的正确观念 

B、有利于转变经济发展方式 

C、有利于转变政府职能 

D、有利于抑制消极腐败现象

答案

参考答案：A, B, C, D

选择题

下列多项式中，不能进行因式分解的是 [ ]

A．﹣a2+b2

B．﹣a2﹣b2

C．a3﹣3a2+2a

D．a2﹣2ab+b2﹣1
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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 (1) fraudulent Web sites without their knowledge or consent. Pharming has been called "phishing without a lure".

In phishing, the perpetrator sends out legitimate- (2) looking e-malls, 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 (3) victimized 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 (4) bookmark entry. Some spyware removal programs can correct the corruption, but it frequently recurs unless the user changes browsing. (5) habits,

1（）

A．few

B．fraudulent

C．normal

D．structured
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