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某市教委决定修建一所小学，对其使用的国有土地，土管部门未经过拍卖程序就予以批准。
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保安人员在门岗执勤时（）。
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阐述脑梗死的静脉溶栓治疗的适应证、禁忌证和并发症。
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冰机什么情况下紧急停车？
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Scientists were embroiled (使卷入) last week in an international row over genetically modified cotton (GM cotton).A study in China suggested for the first time that the crop was permanently damaging the environment and that insects were building up resistance to it.The study, by the Nanjing institute of Environmental Science, combined the laboratory and field work from four Chinese scientific institutes. The study was done over a several - year period.GM Cotton had a gene resistance to the cotton bollworm (棉铃虫) and isolated from the bacterium (细菌) named Bacillus thuringiensis (Bt), but the study found that it harms the natural parasitic (寄生的) enemies of the cotton bollworm.It also indicated that populations of pests besides the bollworm had increased in Bt cotton fields and some had replaced the bollworm as the primary pest.However, the leading GM company, the US's Monsanto, which controls more than 80 per cent of the Bt cotton grown worldwide, dismissed the research.It said that the industry has always cited GM cotton as its biggest success, because it can increase yields by up to 60 per cent and reduce the need for pesticides (杀虫剂) by 80 per cent.But, unfortunately for the industry, (80) the scientists also found that the resistance of Bt cotton to bollworm decreased significantly over time.Why scientists say no to GM cotton?A．Because the cotton was genetically modified.B．Because the cotton was found to damage the environment.C．Because the cotton harms the bollworm.D．Because Monsanto dismissed the research.
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肋包括几部分？有哪些主要结构？
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男，58岁，无痛性肉眼血尿8个月，膀胱镜检查提示膀胱三角区右3cm团块。双合诊检查：肿物坚硬，诊断为膀胱浸润性癌。病人一般情况良好，最佳的治疗方案是（）
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对于安全观察频次，以下正确的是（）。
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温热低频电疗法的适应证包括（）
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拖曳和货物系固设备中拖曳设备试验包括以下哪几种实验项目（）