1.what safety and emergency sings can you identify at your workpalce?(please use drawings on a separate and explain what they mean)
安全和应急 唱什么你能识别你的工作呢?（请在单独使用图纸,并解释他们的意思）
2.explain what you have to do in an emergency evacuation at your workplace.
explain你必须在紧急情况下疏散做你的工作场所.