【简答题】A typical DBMS(Data Base Management System)is expected to provide a number of specific functions.
【判断题】A database management system (DBMS) is an extremely complex set of software programs that controls the organization, storage and retrieval of data (fields, records and files) in a database.
【判断题】DBMS is a system software.
【简答题】患者,男,23岁。因喉疼、咳嗽5天前来就诊。自诉无过敏史,青霉素皮试阴性。遵医嘱给5%葡萄糖注射液500ml、青霉素800万 U 静脉滴注。患者在静滴青霉素的第3天,突发气促、严重发绀以致呼吸暂停等呼吸衰竭危险。
【判断题】纺织材料在进行调湿时一般是由吸湿达到平衡 。