统计推断的内容包括
A.点估计和区间估计B.集中趋势与离散趋势指标C.统计描述和统计图表D.参数估计和假设检验E.参数估计和统计预测
参考答案:D
阅读下面短文,根据所给中文正确拼写单词,每空一词。
Henry was a great writer in the 1 (十九) century. When he was young, he lived a 2 (艰苦的)
life. He loved reading and writing very much. But his parents thought it wasn't helpful. He 3 (回复) them that he didn't give up 4 (尝试). At 24, he wrote the first book 5 (关于) a lovely and young boy.
And the boy's ideas were quite different from 6 (我们的). He was very strange and didn't 7 (遵守) social rules. 8 (自从) the book was published, it had won the 9 (心) of many young people
and became popular. Then his books were sold in great 10 (规模).
男性,66岁,反复咳嗽、咳痰30余年,进行性呼吸困难10余年,反复双下肢水肿2年。因咳嗽、咳痰加重3天入院。查体:口唇发绀,颈静脉怒张,球结膜充血水肿,桶状胸,双肺叩诊呈过清音,呼吸30次/分,双下肺可闻及细湿啰音,双下肢呈可凹性水肿。病理反射未引出。胸片示:两肺纹理增重、紊乱,两肺透亮度增高。
下述检查结果提示该患者为阻塞性通气功能障碍的是()。
A.FVC占预计值60%
B.TLC占预计值60%
C.FEV占预计值60%
D.FEV/FVC60%
E.V50占预计值的60%