读图,其中甲图的阴影部分表示黑夜,回答下列问题。
图中所示日期,我国长江流域可能出现()天气,它是由()造成的。
参考答案:
梅雨(连阴雨);准静止锋
使用菜单操作方法打开一个在当前目录下已经存在的查询文件zgjk.qpr后,在命令窗口生成的命令是( )。
A.OPEN QUERY zgjk,qpr
B.MODIEY QUERY 2gjk.qpr
C.D0 QUERY zgjk.qpr
D.CREATE QUERY zgjk.qpr
Pharming is a scamming practice in which malicious code is installed on a personal computer or server,misdirecting users to ______ Web sites without their knowledge or consent. Pharming has been called "phishingwithout a lure". In phishing, the perpetrator sends out legitimate-______ e-mails, appearing to come from some of theWeb’s most popular sites, in an effort to obtain personal and financial information from individualrecipients. But in pharming, larger numbers of computer users can be ______ because it is not necessaryto target individuals one by one and no conscious action is required on the part of the victim. In one form ofpharming attack, code sent in an e-mail modifies local host files on a personal computer. The host filesconvert URLs into the number strings that the computer uses to access Web sites. A computer with acompromised host file will go to the fake Web site even if a user types in the correct Internet address orclicks on an affected ______ entry. Some spyware removal programs can correct the corruption, but itfrequently recurs unless the user changes browsing ______
A. habits signature B. siteC. rages D. address