群体普查

However, even some native-born groups in the U.S. are not well-served by their Census Bureau.

尽管这样，在美国，即使是一些本地出生人口群体也并未得到人口普查局的优良服务。

It denotes that the retinoscopy optometry can not yet be replaced by the computer optometry.

但电脑验光简便、快速，可为检影验光提供参考，可用于屈光不正的群体普查工作。

Besides, this paper is based on the data of the population censes in 2000 with the total fertility rate as the controlling parameter, using PEOPLE and EXCELL to make an analysis of the trend of the oldest- old in China. The result of this analysis demonstrates that the oldest-old is increasing at the fastest rate in China, which has become a block in the development of China.

本文还以中国2000年人口普查数据为基础，以总和生育率为调控参数，在一定的死亡水平之下，采用People和Excell对中国高龄老年人口进行趋势分析，预测结果表明，中国高龄老年人口仍然是增长最快的人口群体，其问题的严重性已不言而喻。

Through the eye ground investigation of faculty in college, it can be found that the changes of eye-ground are serious.

通过对高校教师眼底的普查，发现在高校教师群体中，眼底改变程度已相当严重。

This paper is based on the karting sport by the characteristics of its population set up for 15 to 39-year-old male middle-aged and young, and from the Bureau of Weihai City in 2000 Weihai fifth census data to Statistics The number of potential consumer groups.

本文主要是根据卡丁车这一体育项目所具有的特点将其适宜人群设置在15~39岁的男性中青年，并从威海市统计局的2000年威海第五次人口普查数据来统计这一潜在消费群体数量。

When the population of interest is large,a well-selected sample can generate more accurate and informative results about the population than information from the entire population.

当母群体过大时，经过挑选的样本比直接从母群体中做分析更能够代表母群体统计学第14页为何使用采样？1。普查所费时间长，不具时效性

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。