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根据《汽车库、修车库、停车场设计防火规范》(GB50067—1997)，修车库车位数大于5辆小于等于15辆或总建筑面积大于1000m2小于等于3000m2的修车库为（）。
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"下马观花"方法比"走马观花"方法更科学。（）
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导弹按照攻击活动，目标的类型可分为（）
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诊断皮肌炎的特异性抗体是（）。
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简述资源管理策略的一般内容。
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热工保护系统由哪些部分组成？
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常见的兼业代理主要有()A、个人代理B、银行代理C、行业代理D、社会团体代理
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“从左右， 皆肘之。”中“肘”字的特殊用法是()。
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运行和停车时，如何对4117合成塔进行维护保养？
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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.