地面直流电源的插座上有3个端子,其中控制端的作用是:().A.接上外电源时,防止产生 发布时间:2020-01-19 03:51 │ 来源:www.tikuol.com 题型:多项选择题 问题: 地面直流电源的插座上有3个端子,其中控制端的作用是:().A.接上外电源时,防止产生火花B.拔出外电源时,防止产生火花C.保证外电源相序正确D.外电源发生过电压时自动跳开
题型:多项选择题 SaleCar made in AmericaHalf new$500Charlie LiEmail: Charlieli@yahoo.comNeededBabysitter(临时保姆)10 dollars an hourSpeak good Chinese Jenny Wang2657891Room-mate WantedA male Chinese speakerShare a two-bedroom flat with washing machine, fridge, kitchenFlat near Harvard UniversityCall Henry 2641832Least(出租)One-bedroom flatFrom July 1to Dec.30. Next to Harvard UniversityCall Robert 2648321小题1:The American car belongs to _______.A.RobertB.HenryC.JennyD.Charlie小题2:If the babysitter works five hours a day, she will get _____dollars.A.30B.50C.20D.100小题3:Henry needs_____________.A.a room-mate who is a girl and can speak ChineseB.a room-mate who is a boy and can speak ChineseC.a room-mate who is a girl and can speak EnglishD.a room-mate who is a boy and can speak English 查看答案
题型:多项选择题 下列可以配置民用枪支的单位有()。A.甲单位系省级人民政府体育行政主管部门批准专门从事射击竞技体育运动的单位B.乙单位系省级人民政府公安机关批准的营业性射击场C.丙单位系省级以上人民政府林业行政主管部门批准的狩猎场D.丁单位系野生动物保护单位,因业务需要使用枪支 查看答案