已知两圆外切,圆心距为5cm ,若其中一个圆的半径是3cm ,则另一个圆的半径是[ ]
A.8cm
B.5cm
C.3cm
D.2cm
答案:D
Have the villagers already known ________ we’ll do is to rebuild the bridge?
A.this
B.that
C.what
D.which
请完善程序(程序文件名:Java_3.java)并进行调试。请在下画线处填入正确内容,然后删除下画线。请勿删除注释行和其他已有的语句内容。 题目要求: 显示一个带“Welcome to Beijing”标题的天坛风景图片,图片的下方有“The Temple of Heaven”的图片说明。要求考生对Java_3.java进行完善并调试,使程序的运行结果如下图所示。
源程序: import java.awt.*; import javax.swing.*; public class Java_3 public static void main(String[]args) BeijingFrame frame=new BeijingFrame(); frame.setDefauhCloseOperation(JFrame.EXIT_ON_CLOSE); frame.show(); class (1) extends JFrame public BeijingFrame() setTitle("Welcome to Beijing"); Container contentPane=getContentPane(); BeijingPanel panel=new BeijingPanel(); contentPane.add(panel); pack(); class BeijingPanel extends JPanel public BeijingPanel() setLayout(new (2) ); ImageIcon icon=new ImageIcon(:tiantan.jpg"); jLC=new JLabel( (3) ); add(jLC, BorderLayout.CENTER); lpanel=new JPanel(); jLS=new JLabel("The Temple of Heaven"); lpanel.add(jLS); add(1panel,BorderLayout.SOUTH); private JLabel jLC; private JLabel jLS; private JPanel panel; private JPanel lpanel;