一项筛查试验能将实际无病的人正确地判断为非患者的能力,我们称之为
A.灵敏度B.特异度C.阳性预测值D.阴性预测值E.约登指数
参考答案:B
(2009福建顺昌模拟)——We can never forget the days _______ the two astronauts in spaceship worked together and the days ________ we spent together.
A.when; which
B.which; when
C.what; that
D.on which; when
交流滤波器电容器不平衡保护动作如何处理?