单项选择题AwebbrowserneedNOTalwaysperformacompleterequestforaparticularpagethatitsuspectsmightNOThavechanged.TheHTTPspecificationprovidesamechanismforthebrowsertoretrieveonlyapartialresponsefromthewebserver;thisresponseincludesinformation,suchastheLast-ModifieddatebutNOTthebodyofthepage.WhichHTTPmethodwillthebrowserusetoretrievesuchapartialresponse?()A.GETB.ASKC.SENDD.HEADE.TRACE
单项选择题现有:1.classBook{2.privatefinalvoidread(){System.out.print( book );}3.}4.classPageextendsBook{5.publicstaticvoidmain(String[]args){6. insertcodehere7.}8.privatefinalvoidread(){System.out.print( page );}9.}和如下三个代码片段(x,y,z):x. justacommenty.newPage().read();z.newBook().read();分别插入到第6行,有几个允许代码通过编译并可以运行且无异常?()A.0B.1C.2D.3
单项选择题在保存图片时,要满足淘宝发布图片大小不大于120K的要求的最简便的方法是()
单项选择题1.publicinterfaceA{2.publicvoiddoSomething(Stringthing);3.}1.publicclassAImplimplementsA{2.publicvoiddoSomething(Stringmsg){}3.}1.publicclassB{2.publicAdoit(){3. morecodehere4.}5.6.publicStringexecute(){7. morecodehere8.}9.}1.publicclassCextendsB{2.publicAImpldoit(){3. morecodehere4.}5.6.publicObjectexecute(){7. morecodehere8.}9.}Whichstatementistrueabouttheclassesandinterfacesintheexhibit?()
单项选择题Youconnectanexternalmonitortoaportablecomputer.Youneedtoincreasetheavailabledesktopareatoincludetheexternalmonitor.Whatshouldyoudo?()