| | | | | | | | | | 7 | | | | | | | 2018 | | | | | 4.39 | | | 8 | 54.75 52.65 19 5.05 | 1F 5F 17F 18F | 2.4 | 19.0% | 352 | | www.ybs.gov.cn | 0476 3509606 | | | | 2020 5 22 |