LONDON, July 17 (Xinhua) -- An annual survey of British public opinion on foreign policy has found that Britain's once-hailed "special relationship" with the United States is weakening under U.S.

本研究针对早期生命逆境(ELA)如何影响儿童生物衰老这一关键问题，通过2年纵向追踪1,280名7-12岁儿童，首次揭示威胁(threat)、剥夺(deprivation)和不可预测性(unpredictability)三类ELA维度对第二恒磨牙(M2)萌出时间的差异化影响。研究发现 deprivation-related ELA(HR=1.07)和unpredictability-related ...