[填空题]本题的功能是通过鼠标确定两个点，然后画两点间的直线。窗口中有一个按钮“Draw line”，单击该按钮后，它就处于按下状态，然后用鼠标在窗口中单击一下，在单击的地方就会出现一个坐标圆点，用鼠标在另外一个地方单击一下又会出现另外一个圆点，并且此时在两个坐标圆点间画出一条直线，且“Draw line”处于可用状态，再单击这个按钮就可以画另外一条直线。
import java. awt. * ;
import java. awt. event. * ;
import javax. swing. * ;
class EventQueuePanel extends JPanel implements ActionListener
EventQueuePanel（　）
JButton button=new JButton("Draw line");
add(button);
button. addActionListener(this);

public void actionPerformed(ActionEvent evt)
( Graphics g=getGraphics（　）;
______p= getClick（　）;
g. drawOval(p. x-2, p. y-2, 4, 4);
Point q=getClick（　）;
g. drawOval(q. x-2, q. y-2, 4, 4);
g. drawLine(p, x, p. y, q. x, q. y);
g. dispose（　）

public Point getClick（　）
EventQueue eq=Toolkit. getDefaultToolkit（　）. getSystemEventQueue（　）;
while (true)
try
AWTEvent evt=eq. getNextEvent（　）;
if (evt. getlD（　）==MouseEvent. MOUSEPRESSED)
MouseEvent mevt=(MouseEve

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By then we’ll be wrestling with another question: how we control all the electronic (6) connected to the internet: trillions of PCs, laptops, cell phones and other gadgets. In Cambridge, we’re already working (7) millimetre-square computing and sensing devices that can be linked to the internet through the radio network. This sort
A. universal
B. global
C. solar
D. lunar

Many people invest in the stock market hoping to find the next Microsoft and Dell. However, I know (1) personal experience how difficult this really is. For more than a year, I waw (2) hundreds and sometimes thousands of dollars a day investing in the market. It seemed so easy, I dreamed of (3) my job at the end of the year, of buying a small apartment in Paris, of traveling around the world. But these dreams (4) to a sudden and dramatic end when a stock I (5) , Texas cellular pone wholesaler, fell by more than 75 percent (6) a one year period. On the (7) day, it plunged by more than $ 15 a share. There was a rumor the company was (8) sales figures. That was when I leamed how quickly Wall street (9) companies that misrepresent the (10) .
In a (11) , I sold all my stock in the company, paying (12) margin debt with cash advances from my (13) card. Because I owned so many shares, I
A. over
B. by
C. from
D. with