抗药金葡菌感染应选() ["A.苄青霉素","B.新青霉素II","C.苄星青霉素","D.普鲁卡因青霉素"]
旋回中船舶转向90度时的横移距离约为(DT为旋回初径):() ["0.3DT","0.5DT","0.6DT","0.9DT"]
仪表的精度等级是用下面哪种误差表示的()。 ["系统误差;","绝对误差;","允许误差。"]
精度为0.5级的温度表,测量范围为50~800℃,该表的允许基本误差是()。 ["A、±3.75℃;","B、±4℃;","C、±4.25℃;","D、±0.35℃。"]
追随性、旋回性均差的船舶在旋回中:() ["纵距大,横距也大","纵距大,横距小","纵距小,横距也小","纵距小,横距大"]
骨灰档案管理期限的划分方法与依据是什么?