《中华人民共和国政府采购法》立法目的的“五个纲“指的是（）。

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问题多项选择题

A.维护国家利益和社会公共利益

B.促进廉政建设

C.规范政府采购行为

D.提高政府采购资金的使用效益

答案

参考答案：A, B, C, D

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,

4（）

A．hypertext

B．computation

C．expectation

D．bookmark

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单项选择题

吸入激素对肾上腺皮质功能影响存在（）

A.时间－效应关系

B.剂量－效应关系

C.阈值－效应关系

D.全部都对

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