患者,女性,40岁,诊断为消化性溃疡2年,近日感上腹饱胀不适,疼痛于餐后加重,并有恶心、呕吐,大量呕吐后症状可以缓解,呕吐物含有发酵酸性宿食。该患者最可能发生的并发症是()。
A. 上消化道大量出血
B. 幽门梗阻
C. 溃疡穿孔
D. 溃疡癌变
E. 肝性脑病
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新航行系统的主要技术是()。
A. 计算机
B. 雷达
C. 卫星通信、卫星导航、数据链和计算机技术
D. 卫星通信
A customer is ordering a new p650 server to be placed into an existing OEM 42U 19-inch rack containing only two p630 servers. This is the first p650 in the enterprise. What is the most important question that the pSeries technical specialist should ask the customer before the order is placed?()
A. Have the PDU requirements been met?
B. Are there sufficient KVM connections?
C. Is there sufficient service clearance?
D. Is there sufficient space in the existing rack?
患儿,男性,10岁,水肿、尿少、肉眼血尿3天,3周前开始反复出现双下肢出血性皮疹,对称性分布,伴关节肿痛。最可能的是()
A. 狼疮性肾炎
B. 急性。肾小球肾炎
C. 过敏性紫癜肾炎
D. 乙肝病毒相关性肾炎
E. IgA肾病