一项病例对照研究的结果为OR(95%CI)=11.6(0.5~32.9),该结果表明()
A. 该暴露因素是疾病的危险因素
B. 该暴露因素是疾病的无关因素
C. 该暴露因素是疾病的保护因素
D. 该暴露因素对疾病具有特异性
Both the EU and China import and export _____ and ______.
Only the EU - USA trade relationship is _____ than the relationship between China and the EU.
State-owned enterprisesare one of the _____ between China and the EU.