问题
单项选择题 A1/A2型题
表示试验在相同条件下,重复试验获得相同结果的稳定程度的指标是()。
A.特异度
B.阳性预示值
C.阴性预示值
D.精密度
E.约登指数(Youden’sindex)
答案
参考答案:D
解析:精密度(或可靠性,reliability)是指试验在相同条件下,重复试验获得相同结果的稳定程度。用变异系数(CV)表示。
表示试验在相同条件下,重复试验获得相同结果的稳定程度的指标是()。
A.特异度
B.阳性预示值
C.阴性预示值
D.精密度
E.约登指数(Youden’sindex)
参考答案:D
解析:精密度(或可靠性,reliability)是指试验在相同条件下,重复试验获得相同结果的稳定程度。用变异系数(CV)表示。
完型填空。(本题10小题,每小题1分,共10分) Welcome to Wenzhou 1, everyone! Let me 2 you many different animals today. Listen! Many 3 are singing in the tree. Can you see some monkeys? They are clever and like 4 bananas. Look! There are many koalas. They 5 from Australia. They are quiet, 6 and cute. Children like them. Oh, there’s a tiger in the cage(笼子)7 the tree. It eats a lot of 8 every day. I like pandas best 9 they live only in China. Animals are our friends, we should take care of (照顾)them. I’m 10 you’ll have a good time here.
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