ThedevelopmentoftheSemanticWebproceedsinsteps,eachstepbuildingalayerontopofanother.Thepragmaticjustificationforthisapproachisthatitiseasiertoachieve()onsmallsteps,whereasitismuchhardertogeteveryoneonboardiftoomuchisattempted.Usuallythereareseveralresearchgroupsmovingindifferentdirections;this()ofideasisamajordrivingforceforscientificprogress.However,fromanengineeringperspectivethereisaneedtostandardize.So,ifmostresearchersagreeoncertainsuesanddisagreeonothers,itmakessensetofixthepointsofagreement.Thisway,evenifhemoreambitiousresearcheffortsshouldfail,therewillbeatleast(请作答此空)positiveoutcomes.Oncea()hasbeenestablished,manymoregroupsandcompanieswilladoptit,insteadofwaitingtoseewhichofthealternativeresearchlineswillbesuccessfulintheendhenatureofthesemanticwebissuchthatcompaniesandsingleusersmustbuildtools,addcontent,andusethatcontent.Wecannotwaituntilthefullsemanticwebvisionmaterializes-itmaytakeanothertenyearsforittoberealizedtoitsfull()(asenvisionedtoday,ofcourse).
A.total
B.complete
C.partial
D.entire
正确答案是C