330MW机组更换和调整发电机碳刷应注意哪些事项?
小肠上皮吸收细胞游离面有()。 ["鞭毛","纤毛","微绒毛","绒毛","刷状缘"]
血清除菌()。 ["巴氏消毒法","高压蒸汽灭菌法","紫外线消毒法","煮沸法","过滤除菌法"]
检测一批糕点食品的微生物指标,请你选择检测国家标准。沙门菌检验国家标准是()。 ["A.GB/T4789.4-2008","GB/T4789.4-2010","GB/T4789.28-2010","CB/T4789.28-2008","GB17489-1979"]
牛乳除菌()。 ["巴氏消毒法","高压蒸汽灭菌法","紫外线消毒法","煮沸法","过滤除菌法"]
330MW汽轮发电机并列时应注意哪些事项?