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电动机运行中,如果电网电压下降到额定电压的85%时,电动机会出现“堵转”现象,此时应采用自锁控制线路避免事故发生
A . 正确
B . 错误
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以下授信执行环节违规行为应给予有关责任人员撤职至开除处分的是()。
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.
在行政复议中,第三人享有与()相同的权利,承担相同的义务。
患者女性,54岁,体重65kg,因“左侧腰腹部疼痛3日,少尿19小时”来诊。患者于就诊前2日无明显诱因出现左侧腰腹部胀痛,呈剧痛,难以忍受,伴恶心、呕吐胃内容物,呈非喷射状,未予处理。就诊前1日于外院诊断左侧泌尿系结石,行碎石治疗,碎石后仍有左侧腰腹部疼痛,伴小便色深,呈洗肉水样,19小时尿量约250ml。血常规:白细胞20.76×10/L,中性粒细胞0.89;尿常规:红细胞377/μl,白细胞27766.7/μl,白细胞酯酶(+++),亚硝酸盐(+),尿蛋白(++);肾功能:尿素氮16.07mmol/L,肌酐262.1μmol/L,尿酸613.6μmol/L。查体:体温37.1℃,脉搏83次/分,呼吸23次/分,血压76/30mmHg(1mmHg=0.133kPa)。以“左侧泌尿系结石碎石术后、急性肾损伤、泌尿系感染”收入院。既往史:5年前诊断干燥综合征,一直口服白芍总苷胶囊0.6g,每日1次。如经验性给予左氧氟沙星,并尽可能在最短时间内控制感染,给药剂量为()
氯气是黄绿色气体,在大气压下,温度0℃时,其密度为空气的()倍。
某个项目要确认为无形资产,首先必须符合无形资产的定义,其次产生的经济利益很可能流入企业,再次其成本能够可靠地计量。()
为保证系统的安全稳定运行,发电机组及控制装置的性能必须符合国家和电力行业相关标准的要求。发电机组性能测试内容包括()。
室内的照明,一般可以分为环境照明、工作照明和()三种方式。
()是指植株或器官受害程度。
流经人体的电流强度越大,则电击造成的伤亡程度()。