累计发病率与发病密度的主要区别是() A.累计发病率利用人时计算,发病密度利用实际观

题型:单项选择题

问题:

累计发病率与发病密度的主要区别是()

A.累计发病率利用人时计算,发病密度利用实际观察人数计算

B.累计发病率用于确定暴露比,发病密度用于确定样本量

C.发病密度用于估计相对危险度,累计发病率用于估计绝对危险度

D.累计发病率用于病例对照研究,发病密度用于队列研究

E.累计发病率用于稳定人群,发病密度用于不稳定人群

考点:卫生管理(医学高级)流行病学流行病学题库
题型:单项选择题

患者女,65岁,拔除口内所有余留牙后1个月要求行全口义齿修复,修复3个月后,急者自述义齿变松动

该患者出现义齿松动的原因最可能是()

A.后堤区封闭不好

B.基托边缘过长

C.基托变形

D.咬合关系不好

E.拔牙后继发牙槽嵴吸收

题型:单项选择题

楼盘广告上的图画属于房地产经纪信息的( )。

A.语言要素

B.内容要素

C.载体要素

D.中介要素

题型:单项选择题

按要求转换句型。

1. He has been here for more than five years. (改为一般疑问句)

   _______ he _______ here for more than five years?

2. They will hold a Food Festival to raise money for the students in Africa. (对划线部分提问)

   _______ will they hold a Food Festival _______ ?

3. The little boy wants to know how he can get a nice hat. (改为同义句)

   The little boy wants to know _______ _______ get a nice hat?

4. He got up early in order to catch the early bus. (改为同义句)

   He got up early _______ _______ he could catch the early bus.

5. The man who is playing basketball on the playground is our English teacher.(改为同义句)

   The man _______ _______ on the playground is our English teacher.

6. The old man died five months ago. (改为同义句)

   The old man _______ _______ dead for five months.

7. The children had a good time in the park yesterday afternoon. (改为同义句)

   The children _______ _______ in the park yesterday afternoon.

8. The concert is very wonderful. (改为感叹句)

   _______ _______ the concert is!

9. Everyone enjoyed themselves last night. (改为反义疑问句)

   Everyone enjoyed themselves last night, _______ _______.

10. He is the tallest in our class. (改为同义句)

   He is taller than _______ _______ student in our class..

题型:单项选择题

信用证诈骗罪的防范要点都有哪些?

题型:单项选择题

金融寡头通过掌握()等上层建筑的领域,以左右国家的内政外交及社会生活。

A.新闻出版

B.广播电视

C.科学教育

D.文化体育

更多题库