[多选题]实施灭火救援现场安全警戒下列说法正确的是( )
A.警戒人员应规范着装,带齐通讯、照明、警戒警示等器材,坚守岗位,密切观察,发现紧急情况时应及时报告并发出警示信号,迅速组织撤离。
B.负责警戒的人员要注意自身安全,选择安全位置站立,出现险情时应采取紧急避险措施。
C.危险化学品泄漏事故现场,应根据泄漏物质、泄漏量、风向、风速等因素确定警戒范围,划定重危区、中危区、轻危区和安全区,并根据实时侦检情况作出动态调整。
D.在道路救援时,打开警灯警报,设置发光反光警戒标志标识,严格管控作业区域;必要时,应协调交管部门发布信息提示,实施交通管制。一般道路实施警戒时,警戒距离不少于150米;高速公路实施警戒时,警戒距离不少于500米,并在200米处设置第二道警戒,同时安排人员利用灯光、旗语警示提醒来车避让;遇有雨、雪、雾等天气或夜间,警戒距离应扩大1—1.5倍。

[听力原文]
Women are on their way to holding more than half of all American jobs. The latest government report shows that their share of nonfarm jobs reached nearly 50% in September. Not only have more and more women entered the labor market over the years, but the recession has been harder on men. In October, the unemployment rate for men was almost 11% compared to 8% for women. Industries that traditionally use lots of men have suffered deep cuts. For example, manufacturing and building lost more jobs last month. But health care and temporary employment services have job growth. Both of those industries employ high percentages of women. Thirty years ago, women earned 62 cents for every dollar that men earned. Now, for those who usually work full time, women earn about 80% of what men earn. And women hold 51% of good-paying management and professional jobs. Yet a study released Thursday said men still hold about nine out of every ten top positions at the 400
A. More and more women faced unemployment.
B. More and more men entered the labor market.
C. More and more men get affected by the recession.
D. More and more women get affected by the recession.