传染性非典型肺炎是() ["有传染性的症状不典型的呼吸道疾病","严重急性呼吸道综合征","由耐药性病原体引起的肺炎","症状较轻的典型肺炎","传染原不明的肺炎"]
一些易水解的药物溶液中加入表面活性剂可使稳定性提高的原因是() ["两者形成络合物","药物溶解度增加","药物进入胶束内","药物溶解度降低","药物被吸附在表面活性剂表面"]
心肌梗死患者发病后2~3d,血沉加快并持续() ["1~8周","1~6周","1~4周","1~3周","1周"]
预付订金
在酸性介质中,用草酸钠标定高锰酸钾溶液,滴加高锰酸钾溶液时应注意() ["始终快速进行","开始时缓慢滴定,以后逐渐加快","始终缓慢进行","开始快速,然后缓慢,最后又逐渐加快","开始时快,以后逐渐缓慢"]
可视化Basic