术中置管术后近距离治疗的优点包括（）。

A.清醒后照射

B.可拍定位片进行剂量计算并优化

C.可以多次照射

D.A+B+C

E.A+C

下面程序段的输出结果是( )。
class Test
public static void main(String args[])
MyThread t=new MyThread();
t.displayOutput("t has been createD");
t.start();


Class MyThread extends Thread
public void displayOutput(String s)
System.out.println(s);
public void run()
displayOutput("t is running.");

A．t has been created.

B．t has been created.
T is running.

C．t is running.

D．编译出错