网络传真主要有3种类型,它们是()。A.PC-PCB.PC-FAXC.Phone-PhoneD.FAX-FAX
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It is necessary that the specifications()the requirements.A、confirm toB、conform. toC、confirm withD、conform
Advertisers appeal ________ young people's desire to conform.A.inB.toC.atD.for
执行下列代码后,输出的结果为( )。 class Base { int x = 30; void setX( ) {x=1O;} } class SubClass extends Base { int x=40; void setX ( ) {x=20;} int getX( ) {return super. x; } } public class Test { public static void main(String[ ] args) { SubClass sub=new SubClass( ); sub. setX( ); System. out. println(sub, getX( ) ); } }A.10B.20C.30D.40
Whichofthefollowingstatementsaboutcoolingistrue?()A.Adaptercards(e.g.modems)donotaddtotheheatgeneratedinacomputercase.B.Busmasteringreducestheamountofheatgeneratedinsideacomputercase.C.Removingexpansionslotcoverscancompromisecoolingairflowdesign.D.Periodiccleaningofthecomputercomponentsinsidethecasehasnoeffectoncoolingefficiency.
Passage through the Suez Canal is operated on a ______ system.A.conveyB.convoyC.escortD.conform
设有程序如下: public class jzh0319 { public static void main(String args[]) { subClass sc=new subClass(); } } class superClass { superClass() { System.out.println("父类");} } class subClass extends superClass { subClass() {System.out.println("子类"); } } 其输出结果只有一行。()此题为判断题(对,错)。