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User Sessions(访客量)一个单独用户访问一个站点的全过程,即称为一个User Session;在一定时间内所有的User Session的总和称为访客量。()
A、正确
B、错误
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A、正确
B、错误
A、User Sessions
B、IAP(Internet Access Provider)
C、ICP(Internet Content Provider)
D、Unique Users
E、Click Throughs
A.c:user\text.txt
B.c:\user\text.txt
C.c:\user\text.txt
D.c:\\user\\text.txt
下列说法正确的是()
A.alter table user drop column sex;
B.alter table user add sex varchar(20);
C.alter table user drop sex;
D.alter table user modify id int primary key;
A.getServletConfig().getAttribute(“user”)
B.getServletContext().getAttribute(“user”)
C.getServletConfig().getInitParameter(“user”)
D.getServletContext().getInitParameter(“user”)
A.正确
B.错误
GPRS can not charge the user per data bit of information sent and received.()
B.INSER INTO user(name,tel,data) VALUES(“王明”,“8888888”,#2005-5-5#)
C.INSER INTO user VALUES(王明,8888888,2005-5-5)
D.INSER INTO user VALUES“王明”,“8888888”,2005-5-5
B.mailbox
C.attachment
D.password
A.正确
B.错误