中医药专家学术经验和技术专长继承工作的继承人应当具备的条件不包括（）

A.从事专业工作20年以上

B.具有大学本科以上学历

C.具有良好的职业道德

D.受聘于医疗卫生机构或者医学教育、科研机构从事中医药工作

E.担任中级以上专业技术职务

本题程序的功能是求两个交叉图形的并、减、交及异或。窗口中有4个单选按钮和一个图形面板，面板中有两个交叉的图形，选中其中一个单选按钮，图形面板中会以黑色填充的方式显示运算的结果。请将下述程序补充完整(注意：不得改动程序的结构，不得增行或删行)。
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.util.*;
import javax.swing.*;
public class advance

public static void main(String[] args)

JFrame frame = new AreaTestFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();


class AreaTestFrame extends JFrame

public AreaTestFrame()

setTitle("advance");
setSize(WIDTH,HEIGHT);
area1 = new Area(new Ellipse2D.Double(100,100,150,100));
area2 = new Area(new Rectangle2D.Double(150,150,150,100));
______;
panel = new JPanel()

public void paintComponent(Graphics g)

super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
g2.draw(area1);
g2.draw(area2);
if (area ! = null)
g2.fill(area);


contentPane.add(panel,BorderLayout.CENTER);
JPanel buttonPanel = new JPanel();
ButtonGroup group = new ButtonGroup();
JRadioButton addButtoh = new JRadioButton("并",false);
buttonPanel.add(addButton);
group.add(addButton);
addButton.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent event)

area = new Area();
area.add(area1);
area.add(area2);
panel.repaint();

);
JRadioButton subtractButton = new JRadioButton("减",false);
buttonPanel.add(subtractButton);
group.add(subtractButton);
subtractButton.addActionListener(new ActienListener()
public void actionPerformed(ActionEvent event)

area = new Area();
area.add(areal);
______;
panel.repaint();

);
JRadioButton intersectButton = new JRadioButton("交",false);
buttonPanel.add(intersectButton);
group.add(intersectButton);
intersectButton.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent event)

area = new Area();
area.add(area1);
area.intersect(area2);
panel.repaint();

);
JRadioButten exclusiveOrButton = new JRadioButton("异或",false);
buttonPanel.add(exclusiveOrButton);
group.add(exclusiveOrButton);
exclusiveOrButton.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent event)

area = new Area();
area.add(area1);
______;
panel,repaint ();

);
contentPane.add(buttonPanel,BorderLayout.NORTH);

private JPanel pane1;
private Area area;
private Area area1;
private Area area2;
private static final int WIDTH = 400;
private static final int HEIGHT = 400;