Chinese private enterprises continued to lead the country's foreign trade with transactions totaling 24.33 trillion yuan ...

研究人员发现了一种关键牙周病致病菌逃避免疫系统的新机制。研究表明，这种细菌利用CD47蛋白抑制免疫反应，使其能够在炎症组织中持续存在，并引发系统性疾病。阻断CD47或其配体血小板反应蛋白-1（thrombospondin-1，TSP-1）可能为增强细菌清除和改善牙周及整体健康提供一种新策略。

BEIJING, Feb. 24 (Xinhua) -- By shutting out Chinese enterprises and the Chinese market, the United States will end up hurting its own economic interests and international credibility, foreign ...