| | | | | | | 1. | | | | | | | | | 2. | | | | | 1% 2% | | | | | | | 18 | | | 3 7 11 | 4 | 10 2 0.5% | | 3. | 2 3 | | | | 60% 70% | 8 8 | 8 | 5 3 | 4 | 0.5% | | | | | | ︽ ︾ | | | 4. | | | | |