Maria lives in the beautiful countryside．She usually gets up early in the morning，1she's never late for schoo1．After getting up，she often showers and has a good breakfast．Then she2 for school at around 6：303her home is very far from schoolshe likes riding her bike better than4the bus．It takes her about an hour5her bike．It's so long! On the way，she sings and sings so she always feels6．Also she thinks that it's good for her health7to school by bike．
   After school she usually goes back8with her friend，Linda．Linda’s home is nearer than Maria's． It's only three miles from her home9schoo1．Linda likes riding，too．And she also thinks that it is a good10of transportation．

①坚持发展的观点看问题，促进京津冀协同发展

②把握自在事物的联系，顺应当今社会发展趋势

③运用综合思维方式，推动京津冀城市布局的优化

④树立创新意识，突破城市发展客观规律的制约

下列有关衰老细胞特征的叙述，不正确的是（   ）