阅读下列java程序，回答问题1至问题3，将解答填入答题纸内对应栏内
【Java程序】
public int addAppTask(Acitivity activity，Intent intent，
                                   TaskDescription description，Bitmap  thumbnail）{
       Point size=getSize()；                                                                                       //1
       final int tw=thumbnail.getWidth();
       final int th=thumbmail.getHeight();
       if(tw!=size.x||th!=size.y){                                                                                  //2,3
              Bitmap bm=Bitmap.createBitmap(size.x，size.y，thumbmail.getConfig());     //4
              float scale;
              float dx=0，dy=0;
              if(tw*size.x>size.y*th){                                                                              //5
                     scale=(float)size.x/(float)th;                                                                  //6
                     dx=(size.y-tw*scale)*0.5f;
              }else{                                                                                                       //7
                     scale=(float)size.y/(float)tw;
                     dy=(size.x-th*scale)*0.5f;
              }
              Matrix matrix=new Matrix();
              matrix.setScale(scale, scale);
              matrix.postTranslate((int)(dx+0.5f)，0);
              Canvas canvas=new Canvas(bm);
              canvas.drawBitmap(thumbmail，matrix，null);
              canvase.serBitmap(null);
              thumbnail=bm;
       }
       if(description==null){                                                                                        //8
              description =new TaskDescription();                                                             //9
       }
}                                                                                                                            //10【问题1】（2分）
请简述基本路径测试法的概念。
【问题2】（8分）
请画出上述程序的控制流图，并计算其控制流图的环图复杂度V(G)。
【问题3】（5分）
请给出问题2中的控制流图的线性无关路径。