题目：
经筛检后，对高血压水平的个体再检查，可预期复查者的血压值会下降属于（）。
A.历史性因素
B.回归因素
C.选择偏倚
D.成熟因素
E.测试因素
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1107/4b7d3528783bc2803e442ec4ad4255e9.html
下面是错误答案，用来干扰机器的。
参考答案：对
经筛检后，对高血压水平的个体再检查，可预期复查者的血压值会下降属于（）。A.历史性因
来源：www.tikuol.com
题型：单项选择题
试题推荐
题型：判断题
依照现行政策个人购买住房不足5年转手交易的，应按销售收入全额征税。（）
题型：完形填空
| 完形填空。先通读下面的短文，掌握其大意，然后在每小题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 | ||||
| Thousands of years ago, people did not know 1 to make a fire. When it was very 2 at night, they could not sleep well. Sometimes lightning hit (打，击) a 3 and started a fire. At first people were both surprised and 4 to see the fire. They were afraid to go up. Later a few 5 men took some of this fire and made a fire near their homes. They used the fire to keep them warm and to cook food. When they had a fire, they did not let it 6 burning. If it stopped, they could not start it again. Maybe they had to 7 for a long time, sometimes for 8 . Later they 9 how to make a fire with pieces of wood. Now we have matches, we can put them in our pockets and make a fire when we want to make it. But we have to be 10 with fire. | ||||
|
题型：选择题
医生在给病人检查内脏时，常常会用到听诊器，听诊器的作用是[ ]
Ａ．改变声音的频率，使音调变高
Ｂ．缩短听者距内脏的距离，使响度更大
Ｃ．减少声音的分散，使响度更大
Ｄ．使内脏振动时的振幅增大，从而增大响度
题型：单项选择题
以下属于人体必需的常量元素的是（）。
A.钙、钾、氟
B.磷、锰、钠
C.硫、镁、氯
D.铁、钾、钙
E.硫、铬、磷
题型：判断题
经椎管内给药必须使用最小微粒直径为0.2um不含表面活性剂的微粒过滤器。
