2. National preliminaries: The national unified time is 20 10 (Sunday, the last Sunday in March) at 9: 30am-1:10am.
It was April before the national semi-final, and there is no unified examination now, and there will be no examination in the future.
The notice is as follows:
20 10 working rules of the national junior high school applied physics competition
(March 14 preliminaries, March 28th rematch)