--- I think the environment is becoming worse and worse.

--- Yes, I really don’t know we can do about it.

A．which

B．whether

C．that

D．what

下面是用户程序对Applet类中方法paint()的重新定义。根据程序功能，在指定的空白处填上适当的语句或语法成分。 public void paint (Graphics g)　　{g. ______ (“你好!”，10，20)；}