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简介：AbstractGastric carcinoma is extremely rare in pregnancy and the prognosis for this malignancy tends to be dismal. We herein describe a case of gastric cancer in pregnancy to alert clinicians to this rare possibility. A 29-year-old woman developed abdominal spastic pain and diarrhea during the 26 weeks of gestation and her condition was confusing and hard to recognize. The patient was initially misdiagnosed as enterogastritis and inflammatory intestinal obstruction and was finally confirmed by exploratory laparotomy with intestinal and peritoneum metastases. Because the disease was not detected early enough and progressed rapidly, the pregnancy was terminated by cesarean section at 30 weeks of gestation, and then followed by systemic chemotherapy, but eventually succumbed to the lethal pneumonia. Therefore, it is of great significance to alert clinicians to note this rare possibility and to consider the differential diagnosis of this disease in pregnant women with a long course of gastrointestinal symptoms that cannot be explained by pregnancy alone, and cancer should be suspected and tested with sophisticated diagnostic procedures.

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简介：［摘要］《新课标》的引领下，以提高课堂效率来提高课堂教学，是新时代课改的必然选择，同时，双减政策的落地，强调学生五育并举，全面发展，都对开展课堂教学模式与策略提出了时代的要求。故，以《Unit4 School Things》story教学为例，探究新课标下小学英语课堂有效的教学模式。

简介：【摘要】针对某企业热电站一次风机内反馈斩波调速系统改造为变频调速系统的设计实践，介绍了一次风机内反馈斩波调速系统的运行情况；研究了依据负载特性选择变频器主电路方案与控制策略的原则；提出了一次风机主回路，电动机转子电路、控制回路及继电保护配置改造实施方案；分析了一次风机变频器改造后的节能效果。

简介：摘 要：基于教育现代化高质量发展背景，近年俄罗斯教育部出台《2030年前俄罗斯中等职业教育发展战略》草案。该《战略》草案提到了未来十年俄罗斯中等职业教育的五个优先发展方面：更新教育内容、完善基础设施建设、保障对中等职业教育机构财政支持的连续性、提高教师的专业技能、发展职业竞赛文化。鉴于中俄两国教育的发展脉络、教育形式、外部环境的许多相似之处，通过对俄罗斯中等职业教育的现实状况、改革背景、重要举措等方面进行剖析，期能给我国中等职业教育改革发展路径提供些许参考与借鉴。