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分析简爱的人物形象?
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发生()会计事项会影响企业主营业务收入入账金额。
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《指南》中语言领域中分为几个子领域,分别是什么?
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钻速突然变快的原因是什么?
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患者,男性,13岁,因上前牙拥挤、前突就诊,口内观左侧磨牙远中牙合,右侧磨牙中性牙合,正确的诊断是()
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在胸腔内,由浆膜围成的囊腔共计有()
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原发性再生障碍性贫血骨髓象检查不可能出现的改变是()
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翻译:胡马依北风,越鸟巢南枝。
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12岁男孩,出生时身长及体重正常,智力良好,家庭环境尚好,家长发现自幼生长慢于其他同龄儿童。母亲身高146cm。父亲身高167cm查体:身高-2.1SD,体重-1.8SD,心、肺、腹(-),双睾丸体积8ml,少许阴毛,骨龄12.5岁,生长激素激发试验结果正常。预计这种异常最可能的疾病是()
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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.