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The advantage of the educational system in North America is that students learn to think for themselves.()
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5． —Why do you like Beijing Opera?—Because I can _______a lot _________Chinese history．A． learn; aboutB． study; aboutC． learn; forD． study; for
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In China, you will find the following Multinational Hotel Groups as ( ).A. America's Cendant Corp.B. America's Marriott InternationalC. France's Accor Hotel GroupD. America's Hilton Hotels Corp.
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阅读以下程序说明和java代码，将应填入(n)处的字句写在对应栏内。[说明]本程序接收输入的学生信息，包括学号、姓名、成绩，原样输出信息并计算学生的平均成绩。其中学生类Stud除了包括no(学号)、name(姓名)和grade(成绩)数据成员外，还有两个静态变量 sum和num，分别存放总分和人数，另有一个构造函数、一个普通成员函数disp()和一个静态成员函数avg()用于计算平均分。[Java代码]public class Stud {public int no;public String name;public double grade;public (1) double sum=0;public static int num=0;public Stud(int no,String name,double grade) {this.no = no;this.name = name;this.grade = grade;this.sum=(2);(3);}public static double avg(){return (4);}public void disp(){System.out.println(this.no+"\t"+this.name+"\t"+this.grade);}public static void main(String[] args) {Stud []students = {new Stud (1,"Li", 81), new Stud(2,"Zhao",84.5), new Stud(3,"Zhang", 87)};System.out.pfintln("no\tname\tgrade");students[0].disp();students[1].disp();students[2].disp();System.out.println("avg="+(5));}}
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classNav{11.publicenumDirection{NORTH,SOUTH,EAST,WEST}12.}13.publicclassSprite{14.／／insertcodehere15.}Whichcode,insertedatline14,allowstheSpriteclasstocompile?()
A.Directiond=NORTH；B.Nav.Directiond=NORTH；C.Directiond=Direction.NORTH；D.Nav.Directiond=Nav.Direction.NORTH；
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classParent{Stringone,two;
classParent{Stringone，two；publicParent（Stringa，Stringb）{one=a；two=b；}publicvoidprint（）{System.out.println（one）；}}publicclassChildextendsParent{publicChild（Stringa，Stringb）{super（a，b）；}publicvoidprint（）{System.out.println（one+to+two）；}publicstaticvoidmain（Stringarg[]）{Parentp=newParent（south，north）；Parentt=newChild（east，west）；p.print（）；t.print（）；}}Whichofthefollowingiscorrect？（）
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importjava.awt.*；publicclassXextendsFrame{publicstaticvoidmain（Stringargs）{Xx=newX（）；x.pack（）；x.setVisible（true）；}publicX（）{setLayout（newBordrLayout（））；Panelp=newPanel（）；add（p，BorderLayout.NORTH）；Buttonb=newButton（North”）；p.add（b）：Buttonb=newButton（South”）；add（b1，BorderLayout.SOUTH）：}}Whichtwostatementsaretrue？（）A.Thebuttonslabeled“North”and“South”willhavethesamewidth.B.Thebuttonslabeled“North”and“South”willhavethesameheight.C.Theheightofthebuttonlabeled“North”canveryiftheFrameisresized.D.Theheightofthebuttonlabeled“South”canveryiftheFrameisresized.E.Thewidthofthebuttonlabeled“North”isconstanteveniftheFrameisresized.F.Thewidthofthebuttonlabeled“South”isconstanteveniftheFrameisresized.
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Given:Which code, inserted at line 14, allows the Sprite class to compile?()
A.Direction d = NORTH;B.Nav.Direction d = NORTH;C.Direction d = Direction.NORTH;D.Nav.Direction d = Nav.Direction.NORTH;
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