不需停用洋地黄药物的情况为()。A．恶心、呕吐 B．心率70/min C．室性早搏二

________ they won the game was ________ we had expected.  [ ]

A.That; which

B.Whether; that

C.What; that

D.That; what

下列叙述错误的是（　　）

A．花粉存在于雄蕊的花药中

B．摘除了桃花中的雌蕊后，这朵花就不会再发育成果实

C．苹果的食用部分由胚珠发育而成

D．花生的外壳由子房壁发育而成

诊断椎间盘膨出的特征性表现()

A．椎间盘内有气影

B．椎间盘后缘有弧形钙化

C．椎间盘局限性超过椎体边缘

D．椎间盘对称性呈环形超过椎体边缘

E．椎体边缘骨质增生

建设项目的生产运营期指从项目的( )直到项目废除这一时期。

A．投标立项
B．意图产生
C．交付使用
D．决策完成

本题的功能是监听鼠标左右键的单击，以及面板中滚动条的添加。在窗口的画板中单击鼠标左键，在单击的位置绘制一个圆，当绘制的圆大于画板的大小时，画板就添加滚动条，在画板中单击鼠标右键，则清除画板中的所有图形。
import javax.swing.*;
import javax.swing.event.MouseInputAdapter;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class java3 extends JPanel
private Dimension size;
private Vector objects;
private final Color colors[]=
Color.red,Color.blue,Color.green,Color.orange,
Color.cyan,Color.magenta,Color.darkGray,Color.yellow;
private final int color_n=colors.length;
JPanel drawingArea;
public java3()
setOpaque(true);
size=new Dimension(0,0);
objects=new Vector();
JLabel instructionsLeft=new JLabel("单击鼠标左键画圆.");
JLabel instructionsRight=new JLabel("单击鼠标右键清空画板.");
JPanel instructionPanel=new JPanel(new GridLayout(0,1));
instructionPanel.add(instructionsLeft);
instructionPanel.add(instructionsRight);
drawingArea=new JPanel()
protected void paintComponent(Graphics g)
super.paintComponent(g);
Rectangle rect;
for(int i=0;i＜objects.size();i++)
rect=(Rectangle)objects.elementAt(i);
g.setColor(colors[(i%color_n)]);
g.fillOval(rect.x,rect.y,rect.width,rect.height);


;
drawingArea.setBackground(Color.white);
drawingArea.addMouseListener(new MouseListener());
JScrollPane scroller=new JScrollPane(drawingArea);
scroller.setPreferredSize(new Dimension(200,200));
setLayout(new BorderLayout());
add(instructionPanel,BorderLayout.NORTH);
add(scroller,BorderLayout.CENTER);

class MyMouseListener extends mouseInputAdapter
final int W=100;
final int H=100;
public void mouseReleased(MouseEvent e)
boolean changed=false;
if(SwingUtilities.isRightMouseButton(e))
objects.removeAllElements();
size.width=0;
size.height=0;
changed=true;
else
int x-e.getX()-W/2;
int y=e.getY()-H/2;
if(x＜0)x=0;
if(Y＜0)y=0;
Rectangle rect=new Rectangle(x,y,W,H);
objects.addElement(rect);
drawingArea.scrollRectToVisible(rect);
int this_width=(x+W+2);
if(this width＞size.width)
size.width=this_width;changed=true;
int this_height=(y+H+2);
if(this_height＞size.height)
size.height=this_height;changed=true;

if(changed)
drawingArea.setPreferredSize(size);
drawingArea.revalidate();

drawingArea.paint();


public static void main(String args[])
JFrame frame=new JFrame("java3");
frame.addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)System.exit(0);
);
frame.setContentPane(new java3());
frame.pack();
frame.setVisible(true);