哪项是评价漂白粉质量的指标（） ["加氯量","需氯量","余氯","有效氯含量","含氯量"]
参与凝集反应的抗体俗称（）。 ["凝集原","沉淀素","血凝素","凝集素","凝集抗体"]
镁离子浓度超过多少即可出现中毒症状（） ["0.75～lmmol/L","0.7～lmmol／L","3.0mmol／L","1.75～3.0mmol／L","1.7～3.0mmol/L"]
促使水中次氯酸含量保持较高水平的措施是（） ["提高pH","降低pH","提高水温","降低水温","降低浑浊度"]
关于高血压的流行病学调查以下哪项因素未确定与发病有关（） ["体重","年龄","钠盐","吸烟","饮酒"]
试述滴虫性阴道炎的治疗。
