单项选择题
A．notify() B．yield() C．sleep() D．isAlive()
A．class Test implements Runnable public void run() public void someMethod() B．class Test implements Runnable public void run(); C．class Test implements Runnable public void someMethod(); D．class Test implements Runnable public void someMethod()
A．Ⅰ，Ⅱ B．Ⅰ，Ⅱ，Ⅲ C．Ⅰ，Ⅱ，Ⅳ D．Ⅰ，Ⅱ，Ⅲ，Ⅳ