| | | | | | | | | | 14 | | 1. 2021 | | | 5 | 2. | | | 2 | 2 | | 2021 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. 2021 | | 2. | | | | 1. | 1 | 2 | 3 | 4 35 1985 | 4 12 | 5 | | 6 | 7 | | 8 | | | 2021 | 2021 7 31 | | | | 2. | 2021 4 12 4 12 | | 2021 4 | 12 4 12 | 2021 4 12 | 3 | | | | | | 3. | | 2021 7 31 | | | | | | | | | | | | | | | | | | 4. | | | | | 1. | | http://www.impta.com.cn | 2. | 1 | | 2021 4 12 9 00 4 | 15 12 00 | 2021 4 15 15 00 | 2021 4 15 24 00 | | | | | 2 | | 2021 4 21 9 00 4 | 24 12 00 2021 | 4 24 15 00 2021 4 | 24 24 00 | 3. | | | | | 2 | jpg 20KB | | | | | | | | | | | | | | | | 4. | | | | 5. | | | | | 6. | | 7. | | | | 8. | | | | | | | 1. | | | | | | 2. | | 120 50 | 20 | | | | | | | | | 2021 | | 2020 | | | 20 | | | 2021 | | | | | | | | | | | | | | | | | | | | imptasybtf@126. | com | 2021 4 15 24 00 | 2021 4 24 | 24 00 | | 3. | | 2021 5 18 9 00 2021 5 21 | 24 00 | | | | | | 4. | | 4:1 | | 2:1 | | | | | | 1. | | | | | | 2. 2021 5 22 | | 08 30 10 00 | 10 00 12 00 | | | | | | 2021 | | | | | | | | 3. | 150 | | = | ÷1.5 50%+ | ÷1.5 50% | 4. | | 2.5 | 5. | | | | | | 1. | | | 5 | | 7 | | 2. | | 3 1 | | 3 1 | | | | 3. | | | | | | | | 4. | | | | | 1. | | | | 2. | 100 | 3. | 7 | | | 4. | | | | | | | | 5. | | | | | 2 | | 6. | | | | | | 7. | | | | | | | 8. | | | | | | | 5 | | | 60% 40% | = | 60% + 40% | | |