Accordingtothetext,whatisthemajorcauseofthefloodingspam?【】
A.Companiesrelyone-mailforcommunications.
B.Morepeopleintheworldcommunicatebye-mail.
C.Manycomputervirusescontainspame-mail.
D.Moreadvertisersbegintopromotesalesthroughspam.
正确答案:D
Accordingtothetext,whatisthemajorcauseofthefloodingspam?【】
A.Companiesrelyone-mailforcommunications.
B.Morepeopleintheworldcommunicatebye-mail.
C.Manycomputervirusescontainspame-mail.
D.Moreadvertisersbegintopromotesalesthroughspam.
正确答案:D