Improve the cohesiveness in the paragraph
The selection of official standards by family background gradually developed to the selection of talent, while the selection method by selection gradually developed to the form of public examination. The selecting mechanism based on talent later became institutionalised and much more rigorous. + Examination and degree hierarchy Degree Ranks Exam Times held Child student (Tongsheng)
The selection of official standards by family background gradually developed to emphasize talent instead. This method would eventually progress to form the standard of public examinations, to which this mechanism of cultivating talent would be institutionalized, making examinations a notoriously rigorous process to accomplish. + Examination and degree hierarchy Degree Ranks Exam Times held Child student (Tongsheng)