环境污染物的暴露一般是通过() ["直接摄入污染物","接触含有这些污染物的土壤","接触含有这些污染物的生物","接触含有这些污染物的水","接触含有这些污染物的环境介质"]
何谓静脉输液法?它的目的是什么?
属于大气中的二次污染物的是() ["CO","SO2","CO2","H2S","SO3"]
舌体两侧出现青紫色斑点,多考虑() ["心的病变","肝的病变","肾的病变","脾的病变","肺的病变"]
不属于二次环境污染物的是() ["光化学烟雾","可吸入颗粒物","酸雨","甲基汞","有机汞"]
简述青霉素过敏性休克的抢救措施。