抗病毒作用最强的细胞因子是() ["白细胞介素","肿瘤坏死因子","干扰素","集落刺激因子","趋化因子"]
加强对路基个排水设施日常养护与维修是确保路基()的关键环节 ["安全","稳定"]
处理损伤的原则首先是() ["全面细致地检查伤情","周密地制订治疗方案","充分地镇静止痛","全力抢救生命","防止感染"]
欲行胃肠道手术的病人,术前多久开始禁食() ["1~2天","24小时","12小时","6小时","3小时"]
为了能够迅速将路面水排到路基以外,对于土路肩应设置比路拱横坡大()的横坡 ["1%-2%","1.5%-2.5%"]
自燃