已知抛物线$y=a{x}^2+bx+c$($a$＜0)过$A\left(-2,0\right)$、$O\left(0,0\right)$、$B\left(-3,y_1\right)$、$C\left(3,y_2\right)$四点，则$y_1$ 与$y_2$的大小关系是(     )

①减轻群众用药负担，促进药品消费的增长，扩大内需

②充分发挥价格机制的作用，实现资源合理配置

③促进药品价格保持合理水平，缓解群众看病贵的难题

④药品市场的良性发展，建立政府主导下的药品价格形成机制

阅读下列短文，从每小题A、B、C、D四个选项中选出一个最佳答案。

Every year at our school, we have a special day called International Day (国际日). It is for students to learn about different cultures (文化) from different countries. On this day, each class must tell other classes about a different country. Of course you will see many dances and different foods.

If you visit the classroom of Japan, you can play the games Japanese children play. You also have some special Japanese foods. In the classroom of Mexico (墨西哥), there are tomalleys (龙虾肝) and chips to eat.

    In the afternoon, all the students, teachers and parents watch the dances. There are lots of dances.

    These dances are beautiful. People enjoy the shows.

    I enjoy International Day very much.

—         I take some photos in the hall?

— No, you         .