单项选择题
A．the only way to success B．the main purpose of the schools C．just like climbing ladders D．important to success
A．on the history of arts B．about the painting elephants in Asia C．explaining how to teach elephants to paint D．chiefly theorizing about elephant art
A．who was sold for a price as high as $ 5,000 B．who was famous for being the first painting elephant C．whose paintings sold for as high as $ 5,000 D．who started painting in the late 1980s