第5题: [单项选择]采集工业企业排放的污水样品时,第一类污染物的采样点应设在______。 A. 企业的总排放口 B. 车间或车间处理设施的排放口 C. 接纳废水的市政排水管道或河渠的入口处 D. 污水处理池中 参考答案:B 答案解析:对工业废水,监测一类污染物:在车间或车间处理设施的废水排放口设置采样点。
第18题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. She prefers to exercise in the afternoon. B. It is important to make warming-up exercise. C. The man should continue with his exercise. D. The man should start to exercise one month later. 参考答案:C 答案解析:[听力原文] M: I have been running the sports ground every morning for nearly a month. But the scale s
第19题: [单项选择]刺激性气体中毒临床抢救的关键是 A. 吸氧 B. 使用解毒、排毒剂 C. 积极防治肺水肿 D. 对症、支持治疗 E. 适当的营养与休息 参考答案:C