[单项选择]患者，女性，40岁，遵医嘱欲做中段尿细菌培养及药敏试验，护士对其做如下采集标本的指导，其中不正确的是
A. 采集前清洁外阴，苯扎溴铵消毒尿道口
B. 弃去前段尿液
C. 尿液排尽前停止采集尿液
D. 将尿液排到清洁干燥容器内
E. 标本立即送检

We can begin our discussion of "population as global issue" with what most persons mean when they discuss "the population problem": too many people on earth and a too rapid increase in the number added each year. The facts are not in dispute; it was quite right to employ the analogy that likened demographic growth to "a long, thin powder fuse that burns steadily and haltingly until it finally reaches the charge and explodes".
To understand the current situation, which is characterized by rapid increases in population, it is necessary to understand. the history of population trends. Rapid growth is a comparatively recent phenomenon. Looking back at the 8,000 years of demographic history, we find that populations have been virtually stable or growing very slightly for most of human history. For most of our ancestors, life was hard, often nasty, and very short. There was high fertility in most places, but this was usually b
A. There might be an increase of 2.2 billion persons from 1975 to the year 2000.
B. About 50,000 babies are born annually at present.
C. Between 8000 B.C. and the present, the population increase is about 80,000,000 persons each year.
D. The population increased faster between 8000 B.C. and 1650 than between 1650 and the present.