下图漫画《历史的足迹》给我们的哲学启示是（    ）

①善于认识事物的本质联系

②坚持用发展的观点看问题

③坚持用联系的观点看问题

④重视事物前后相继的联系

将函数$f\left(x\right)=\sin \left(\frac{1}{2}x+\frac{\pi }{6}\right)$的图像向左平移$\phi \left(0<\phi <\pi \right)$个单位，再将所得图像上各点的横坐标缩短为原来的$\frac{1}{\omega }\left(\omega >0\right)$倍，纵坐标不变，得到函数$y=g\left(x\right)$的图像，已知函数$y=g\left(x\right)$是周期为$\pi$的偶函数，则$\omega ,\phi$的值分别为（   ）

我国疆域辽阔，陆地面积的全世界排名第（　　）

用所给单词的适当形式填空，未提供单词的根据上下文填入适当的词。Mary's secret

Mary got home very late these few months. Her parents were very  ____ (worry). But when they asked

Ker about that, Mary always had different  ____ (excuse). Her father wanted to find out ____ happened to her.

One day after school, Mary's father secretly followed her to a park. Mary sat down ____. began to paint a picture alone. Her father, stood far away and watched her ____ (paint).

“This little girl comes here to paint every day. I think she  ____ (love) painting,” the cleaner there told him. Her father felt sorry, because he had never wanted ____ (understand) what his daughter liked. He and his wife thought painting was____ waste of time and never supported her. They thought Mary should focus more  ____ her studies, especially science. They only wanted to make her a doctor or an engineer. Now he realized what Mary liked

____ (much) of all her subjects. Her father was moved and changed his mind.