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女性，53岁。右上腹阵发性绞痛伴恶心、呕吐、寒战、高热20小时急诊入院。5年前曾因"肝胆管结石"行"胆囊切除、胆总管探查取石及T形管引流术"。查体：T39℃，P110次／分，BP95/60mmHg。皮肤巩膜黄染。剑突下压痛、反跳痛、腹肌紧张。实验室检查：WBC20×10⁹/L，N89%。B超检查提示：肝胆管多发结石。经补液、解痉止痛、使用抗生素等治疗2天后，症状缓解。入院后第5天，患者突然发生上腹部绞痛，随后出现恶心、呕血，量约150ml。诊断为上消化道出血，最可能的原因是（）。

A. 胃、十二指肠溃疡出血
B. 感染性胆道出血
C. 出血性胃炎
D. 食管胃底曲张静脉破裂出血
E. 应激性溃疡出血

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You work as a network administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers on the ABC.com network have Windows Server 2012 R2 installed.The network as a server named ABC_SR05 that provides DHCP services. You need to create a new IPv4 subnet on the network. The subnet must support a maximum of 5，000 hosts and must have a few unused addresses as possible. How would you configure DHCP to support this subnet？（）

A. You should use a subnet mask of 255.255.255.0.
B. You should use a subnet mask of 255.255.248.0
C. You should use a subnet mask of 255.255.240.0.
D. You should use a subnet mask of 255.255.224.0
E. You should use a subnet mask of 255.255.128.0
F. You should use a subnet mask of 255.255.0.0

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鸭脖多骨少肉，食之无味，一向少人问津。现在，经过加工的武汉市鸭脖产品，以“肉如丝、骨如酥、香喷喷、辣麻麻”的特色受到广大消费者青睐，鸭脖专卖店发展到5000多处，年销售额达数十亿元。鸭脖加工还带动全省养鸭产业迅速发展，年产值达100多亿元。对此现象认识正确的有（）①鸭脖产品受到青睐是因为经过加工包含了一般人类劳动②鸭脖生产和消费紧密相连，相互促进③加强鸭脖品牌建设是企业竞争制胜的关键④产业间的协同发展可以促进经济效益的提高

A. ①②
B. ③④
C. ①③
D. ②④

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“分享经济”是指利用互联网等现代信息技术整合、分享海量的分散化闲置资源，满足多样化需求的经济活动总和。“分享经济”正逐渐成为在互联网技术发展的大背景下的一种全新商业模式。2016年“分享经济”一词首度进入政府工作报告。促进“分享经济”发展的意义是（） ①提高资源利用效率，释放经济增长新动能 ②提升供给弹性和灵活度，推动供给侧结构性改革 ③保障传统企业经济安全，推动企业平稳转型 ④推动公共产品和服务资源共享，扩大居民消费选择

A. ①②
B. ①③
C. ②④
D. ③④

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You are the network administrator for The network consists of a single Active Directory domain All network servers run Windows Server 2003. One member server hosts a folder named F:\TestKingData. Thousands of users constantly request and updates files in F:\TestKingData. You use the Backup utility to perform an incremental backup of F:\TestKingData on magnetic tape. The backup completes normally, but you see an error indicator illuminated on the tape server. You need to verify that you can restore F:\TestKingData from the backup tape. The verification process must not affect existing files. What should you do?（）

A. In the Backup utility, use the Restore and Manage Media tab to select the original tape media. Ensure that files will be restored to their original location. Start the restoration and verify that all files are restored successfully.
B. In the Backup utility, use the Restore and Manage Media tab to select the original tape media. Ensure that files will be restored to a new location. Start the restoration and verify that all files are restored successfully.
C. In the Backup utility, select the Verify data after the backup completes option. Use the original backup tape to perform another incremental backup. Ensure that all files are verifies successfully.
D. In the Backup utility, select the Verify data after the backup completes option. Use a new backup tape to perform another incremental backup. When the verification phase of the backup begins, replace the new tape with the original tape. Ensure that all files are verified successfully.

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A. 胃、十二指肠溃疡出血 B. 感染性胆道出血 C. 出血性胃炎 D. 食管胃底曲张静脉破裂出血 E. 应激性溃疡出血

A. 胃、十二指肠溃疡出血
B. 感染性胆道出血
C. 出血性胃炎
D. 食管胃底曲张静脉破裂出血
E. 应激性溃疡出血