【简答题】完形填空。 A young man was getting ready to graduate from college. He had wanted a beautiful 1 in a dealer's showroom, and knowing his father could well 2 it, he told him that was all he wanted. As Graduat...
【单选题】若实体A和B是一对一的联系,实体B和C是多对一的联系,则实体A和C的联系是()。
【单选题】真空沸腾式海水淡化装置在蒸馏器壳体上的安全阀一般不会在()情况下开启。
【单选题】——Why don‘t you go to medical! college and be a doctor‘?. ——Because it calls for a great deal of __________ , which I doN‘t have.
【简答题】A. 若实体A和B是一对多的联系,实体B和C是一对一的联系,则实体A和C的联系是( )。 B. 一对一 C. 一对多 D. 多对一
【单选题】若实体 A 和实体 B 之间存在 “*:*” 联系, “*:*” 联系表的候选码是 ( ) 。
C.
参与 “*:*” 联系的双方实体的实体表主键的组合
【单选题】病例摘要:患者,男性,53岁,腹胀伴双下肢水肿1个月,加重1周。既往有乙肝病史20余年。体检:前胸见数枚蜘蛛痣,腹膨隆,肝右肋下5cm,质硬,脾左肋下3cm,双下肢明显凹陷性水肿。患者突发心慌、冷汗和反应淡漠,无呕血、黑便和腹痛等不适,BP120/75mmHg,最可能的情况是()。
【简答题】Although accepted by Vassar College in NY, Teixeira de Mattos has decided to go to Europe first.