单选题
发布日期:2021-03-22
low loads necessitate frequent insulation cleaning
exceeding nameplate values shortens useful life
energy is wasted if full loading is not utilized
power factor correction methods are load dependent
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Personality in Americans is further complicated by successive waves of immigration from various countries.
某中学有学生3000人,如欲调查该校学生有关吸烟的知识、态度、行为的情况最可采用的调查方法是()。
听到警报信号后,船员必须在一定时间内到达指定的集合地点。
空气渗透
按照药性升降浮沉理论,下列选项中,具有沉降特性的是
SS3B型电力机车()的风是直接由大气吸入风道而不经过车内通道。
生产经营单位的从业人员有权了解其作业场所和工作岗位存在的危险因素,防范措施及事故应急措施,有权对单位的安全生产工作提出()
大连W公司在英国伦敦拥有一栋写字楼,英国M公司租用该写字楼用于日常经营活动,W公司收到M公司的租金应申报在()项下。
男,28岁,1周前感冒,3天来浮肿、尿少(300~400ml/24h);血压150/100mmHg;血红蛋白80g,/L,血沉90mm/第1小时末,尿蛋白(+++),尿沉渣红细胞20~40个/HP,血肌酐580μmol/L,尿素氮20mmol/L。提示:抗中性粒细胞胞浆抗体阳性。提问:下列疾病最可能的是()
脚手架剪刀撑的斜杆与基本构架结构杆件之间至少有()连接。
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