现有: <br /> 5.  class Order2 implements Runnable  {    <br /> 6.    public void run()  {    <br /> 7. for (int x- o;  x<4;  x++)  { <br /> 8. try{Thread.sleep(100);  )catch  (Exception e)  {  }    <br /> 9.    System.out.print("r");    <br /> 10.    }  } <br /> 11.    public static void main(string  []  args)  {    <br /> 12.    Thread t=new Thread(new order2());    <br /> 13.    t.start(); <br /> 14.    for(int x=0;  x<4;  x++)  {   &e
A、A. Thread.sleep(1);
B、B. Thread.sleep(100);
C、C. Thread.sleep(1000);
D、D. try{ Thread.sleep(1); ) catch (Exception e) { }
E、E. try{Thread.sleep(100); ) catch (Exception e) { }
F、F. try{Thread.sleep(1000); ) catch (Exception e) { }