在Java中，有以下程序段：class MyThread extends Thread {public static void main(String args[]) {MyThread t = new MyThread();MyThread s = new MyThread();t.start();System.out.print("one.");s.start();System.out.print("two.");}public void run() {System.out.print("Thread");}}
A.编译失败
B.程序运行结果为：one.Threadtwo.Thread
C.程序运行结果是：one.two.ThreadThread
D.程序运行结果不确定
正确答案是D