Ruby, the artist, is an Asian elephant, She is17 years old. She lives in the zoo. Ruby has produced about 100 paintings since last year. She has made more than $ 40,000 for the zoo. Zoo leaders say Ruby first showed the talent (才能) about four years ago. Zoo workers watched her make the marks in the sand with her trunk. She rubbed (擦掉) out the marks, then made the new ones. The zoo worker gave her brushes and paints. Soon Ruby painted pictures.
       Newspaper reporters wrote Ruby, then people asked about buying her pictures. And in this way, she made a lot of money for the zoo. This is how Ruby does the paintings. A zoo worker holds different color paints. Ruby touches the colors she wants. Then the worker gives her brushes with the chosen colors in her trunk and Ruby begins painting.

下列属于自强精神表现的有（    ）
①在困难面前不低头，不丧气    ②逃避问题，得过且过
③勇于开拓，积极进取          ④志存高远，执著追求 

下列词语中划线字的读音全都正确的一项是（      ）

在我国，任何人不论职位高低、功劳大小，一旦触犯法律，都要受到法律的制裁。这表明（     ）