邢台地震造成的经济损失约为()。 ["10亿元","20亿元","30亿元","100亿元"]
医疗卫生机构应该对乙类传染病病人密切接触者采取哪项措施,传染病病人密切接触者应当予以配合() ["医学观察","留验","应急接种","药物预防","隔离治疗"]
威灵仙的药用部位是() ["根","根与根茎","花","花序","柱头"]
原植物是素花党参,根头下致密的环状横纹常达全长的1/2以上() ["西党参","川参","潞党","土党参","条党"]
突发事件监测机构、医疗卫生机构和有关单位发现重大食物和职业中毒事件时,应当在以下哪个时间内向所在地县级人民政府卫生行政主管部门报告() ["1小时","2小时","3小时","4小时","6小时"]
滚动轴承的游隙大小对其工件有何影响?