中科院“夸父计划”首席科学家刘维宁，远涉重洋留学，28年后回国效力，漫漫拼搏路，追逐心中“努力攀登空间科学高峰，力争居于世界领先水平”的中国梦，这启示我们（　　）

①将个人梦想融入祖国现代化建设中　　        ②今天享有同祖国一起成长和进步的机会

③要把个人梦想和努力奋斗紧密结合起来　　④只要心中有远大的梦想就能成为科学家

若等差数列$\left\{a_n\right\}$满足${a^2}_1+{a^2}_{100}\le 10$，则$S=a_{100}+a_{101}+\dots +a_{199}$的最大值为（  ）

完型填空。

    Lynn and Lily 1good friends. They are in the same class. They2 Chinese, English and Maths every day. Lynn likes Chinese and English, but Lily doesn't3them. She likes Maths. They have PE and Art4Friday. They like 5 pictures and playing basketball.  So they all like Friday.

下列对挫折的认识正确的是（     ）