Therearemanyformsofonlineadvertising.______isasmallrectangularobjectonaWebpagethatdisplaysastationaryormovinggraphicandincludesahyperlinktotheadvertiser'sWebsite.
A.A text ad B.A site sponsorship ad C.A pop-up ad D.A banner ad正确答案D
Therearemanyformsofonlineadvertising.______isasmallrectangularobjectonaWebpagethatdisplaysastationaryormovinggraphicandincludesahyperlinktotheadvertiser'sWebsite.
A.A text ad B.A site sponsorship ad C.A pop-up ad D.A banner ad正确答案D