用beginning period造句子，“beginning period”造句

It originated in the beginning period of human beings.

The disease development process mainly includes 4 stages: beginning period, full incidence beginning period, full incidence period and Stagnant period.

Objective To understand the situation of prevention and treatment knowledge about novel influenza a (H1N1) at the beginning period among college students at a university.

In the beginning period of Li's dynasty , in political respect, by imitating the system of civilian service of the Tang and the Song dynasty of China, he first established centralized feudal monarchy;