कोविड-19 परीक्षण के विभिन्न मूल्य निर्धारण का आधार क्या है? Yin Qingbo, director of the Public Health Department of Hebei Provincial Hospital of Traditional Chinese Medicine, gave a more objective answer: Yin Qingbo: The first one is cost accounting. The price of the kit, the extraction liquid involved in the intermediate process, and other corresponding material costs, and this …