问题
单项选择题
ROC曲线的主要作用不包括（）
A.易于查出任意界限值时对疾病的识别能力
B.选择最佳的诊断界限值
C.比较两种及其以上的不同诊断试验对疾病的识别能力
D.能提供一个比较直观、全面的关于灵敏度、特异度的情况
E.能提供一个比较直观、全面判断测定结果是否准确的情况
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
ROC曲线的主要作用不包括（）
A.易于查出任意界限值时对疾病的识别能力
B.选择最佳的诊断界限值
C.比较两种及其以上的不同诊断试验对疾病的识别能力
D.能提供一个比较直观、全面的关于灵敏度、特异度的情况
E.能提供一个比较直观、全面判断测定结果是否准确的情况
参考答案：E
完形填空（共20小题；每小题1分，满分20分） It happened when I was a little girl. I can remember neither the beginning nor the end, but whenever I 36 it, tears flow down my face. When I was young, my family led a(n) 37 life in the country. As you can imagine, many country roads are difficult to walk on. One 38 we were visiting some relatives and the 39 was very bad. It began to 40 on our way back home. Dad carried me on his 41 . Mom gave her overcoat to my 42 . We walked together through the rain for more than an hour. I was fat at that time and Dad  must be 43 to hold me for such a long time. He  almost 44 down many times. In hope of 45 my father’s burden, I tried to carry myself, 46 I achieved nothing since I was just a little kid.When we arrived home, the inside of our house was 47 with rain water. The rain had come 48 our leaky（有裂缝的）roof and water was everywhere. Mom put bowls all around the house  to try to 49 the rain. Then she put me and my elder brother to 50 , carefully placing us on the remaining 51 place. I fell asleep soon. When I opened my eyes, I found Dad and Mom were 52 in chairs, both having caught bad colds.This is my very earliest 53 . Though the evening has long passed, and now we live a happy life, I won’t forget the rain we 54 together. The rain, that evening, and especially my parents’  55 , will stay in my mind forever.
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