当发现有人溺水时,最正确的做法是() ["在岸边把长竹竿伸向落水者","不管怎样,先跳下去救人","跑回家去拿救生圈","打110报警"]
消费者权益的管理权属于国家各级()。 ["行政执法机关和行业主管部门","消费者协会","人民法院","仲裁机关"]
()是检测土工织物及其复合材料拉伸性能的主要方法。 ["宽条拉伸试验","接头宽条拉伸试验","接缝宽条拉伸试验","条带拉伸试验"]
烟点校正系数K值由何而来?
蛤粉的功能有:() ["清热","利湿","利尿","化痰","软坚"]
简述实罐灭菌的优缺点