数据库具有最小冗余度、较高的程序与数据独立性,易于扩充和______的特点。
A) 程序结构化 B) 程序标准化C) 数据模块化 D) 数据结构化
参考答案:D
短文填空 (共5小题;每小题1分,满分5分)
By the time he was 14, Mozart had 小题1: many pieces for the harpsichord, piano and violin, as well as for orchestras. While he was still a 小题2: , Mozart was already a big star and 小题3: Europe giving concerts. Haydn met Mozart in 1781 and was very 小题4: with him. “He is the greatest composer the world has known,” he said. The two were friends until Mozart’s 小题5: in 1791.
男,60岁,肥胖。行右股骨外科颈骨折开放复位术,硬膜外麻醉效果不佳改全身麻醉,因声门显露困难反复试插管期间,患者出现室颤。静脉快速诱导后患者突然出现室颤
最可能的原因是()
A.局麻药中毒
B.全脊髓麻痹
C.缺氧
D.急性心肌梗死
E.全身麻醉过深