2024年美国总统选举进入最后冲刺阶段,民主党总统候选人哈里斯和共和党总统候选人特朗普的民调支持率十分接近。双方阵营也正在利用各种资源相互“曝丑”“揭短”,为自己争取更多的选票。 The 2024 U.S. presidential race has entered its final stretch, with Democratic candidate Kamala Harris and ...
BEIJING, Nov. 3 (Xinhua) -- Chinese researchers have made progress in localizing medullary thyroid carcinoma (MTC), a form of thyroid cancer that poses challenges in identifying metastatic lesions.