In phishing, the perpetrator sends out legitimate-(72)E-mails, appearing to come from some of the Web's most popular sites, in ah 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.few
B.fraudulent
C.normal
D.structured
第1题
A.作业高度在2m时属于Ⅰ级高处作业
B.作业高度在5m时,属于E级高处作业
C.作业高度在15m时属于E级高处作业
D.作业高度在30m时,属于N级高处作业
第2题
A.作业高度在2 m时,属于Ⅰ级高处作业
B.作业高度在5m时,属于Ⅱ级高处作业
C.作业高度在15 m时,属于Ⅲ级高处作业
D.作业高度在30 m时,属于Ⅳ级高处作业
第3题
A.作业高度在2m时属于I级高处作业
B.作业高度在5m时,属于E级高处作业
C.作业高度在15m时属于E级高处作业
D.作业高度在30m时,属于N级高处作业
第4题
A.一级高处作业坠落半径为3m
B.二级高处作业坠落半径为4m
C.二级高处作业坠落半径为5m
D.三级高处作业坠落半径为5m
E.四级高处作业坠落半径为5m
第5题
A.一级高处作业坠落半径为3m
B.二级高处作业坠落半径为3m
C.二级高处作业坠落半径为5m
D.三级高处作业坠落半径为5m
E.四级高处作业坠落半径为5m
第6题
A.作业高度2m<hw≤5m,高处作业分级为Ⅰ级
B.作业高度2m<hw≤5m,高处作业分级为Ⅱ级
C.作业高度5m<hw≤15m,高处作业分级为Ⅱ级
D.作业高度5m<hw≤15m,高处作业分级为Ⅲ级
E.作业高度1m<hw≤30m,高处作业分级为Ⅲ级
第7题
A.作业高度2m<h w ≤5m,高处作业分级为Ⅰ级
B.作业高度2m<h w ≤5m,高处作业分级为Ⅱ级
C.作业高度5m<h w ≤15m,高处作业分级为Ⅱ级
D.作业高度5m<h w ≤15m,高处作业分级为Ⅲ级
E.作业高度1m<h w ≤30m,高处作业分级为Ⅲ级
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