| | | | | | 1. | | | | | | | | | | | | | | | | | | | | | | | | | | 20 21 | | | | 2018 3 28 | | | 2. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 40 | | 1. ① | ② | | 2. 1 | | 2 | | | 3. 1 | | | | | 2 | | | | | | | 1. | | | | | | | | 2. 1 | 2 | 3. | 1 | | | | | 4 21 | 2 | | | | | 4. | 1 | | | | 2 | | | 1. 2. 3. 4. 5. | | 5. | 1 | 2 | | 3 | | | 6. | | | 7. | | | | 8. | | | | | | | | | | | 2018 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2020 11 | | |