︹ 2020 ︺ 32 | | | | | | | | | | | | 2020 7 13 | | | | | | | | | | | | | | | | | | | | 1000 50000 | | | 30% | 20 | | | 1 | | | 15 | | 1 | 100 | 1000 | 15 | | | | | | 50% | | | | | | | | | | | 2022 3 | 31 | 2021 3 31 | 2022 3 31 | | | | | | | |