一级维护是由谁负责执行的车辆维护作业

220kV线路为什么要装设综合重合闸装置? 220KV及以上选用单相重合闸的线路,为什么相间距离I、II段,接地距离II段动作后不重合? 220kV输电线路有两套保护运行,分别是纵联距离和纵联差动,单相重合闸投在纵联差动保护装置上,现在由于纵联差动通道故障而主保护停用,重合闸需要做出调整吗,为什么?没有人知道吗? The man is famous for his great skill___swimming填at还是in?标准答案是at但我语感觉得是in. 英语 to 还是at one's wish 意思against one's wish kill two brids wish one stone 的意思 Wish to have one's His great grandfather was among the first to settle in what is now the famous mountain resort.此句中的连接词为什么用what?that或者where不行吗? 求助国际贸易实务的判断题不一定要解析,只要是判断就可以了,但是不要给我一些胡乱的答案,1.拍卖是竞卖方式,而招投标则是竞买方式.2.一项有效的发盘,一旦被受盘人无条件地全部接受,合 国际贸易实务判断题根据《INCOTERMS》判断下列价格条款是否正确,如有错或不完整,请予更正或补充.（1） RMB￥1,500 FOB天津 （2） £100per doz.CFR（3） per case 32.60 CIF London.（4） US＄15 per set CIF 一道国际贸易实务案例分析题我某A公司向加拿大B公司出口某产品总值50万美元,可转让信用证支付.受益人A公司将信用证全部转让给我国C公司,转让时每件差价20美元.C公司按要求发货完毕.议 判断题 关于国际贸易实务的 According to international practice,the insurancepolicy and the insurance certificate have the same legal effect According to theCommodity Law,the injured party may rescind the contract and claim for damageIn any He is famous ____a writer____440mA as;forB for;asC as;asD for;for What ____ he _____ (do) as a famous writer? 英语 帮忙指出错误并改正(^_^) He is a famous writer whose s英语 帮忙指出错误并改正(^_^)He is a famous writer whose story is very popular. I like his works very much. All most his story was read. by me. He attended a meeting in m snowy wish中文歌词 少女时代的 我要中文翻译啊 翻译啊 能人就帮翻了把 ---- （Be;For;As;Do）a writer ,Mo Yan is famous .Because he wins a Nobel Prize for Literayure. Did you watch him ___ football the day before yesterday?A.play B.to play C.playingD.played did you played football yesterday?那错改一下 对话填空Milli:Hi,Andy.Did you play football yesterdayAndy:Yes.We all h____ a great time. 要有过程(1)2+2x=5x-6 (2)3x=12+3=30 (3)6(x=5)=4x不好意思第2题，应该是3x-12+3=30，第1道应该是3+2x=5x-6 三道解方程,谁会?36%+2x=30 2分之5+20%x=120 40%x减2分之7=24 几个点是什么意思 心灵鸡汤英文版中JUST ONE WISH 的翻译 跪求 谢谢Cleo had multiple sclerosis, so the pair had moved to Colby Point seeking a quiet, relaxed life. Little did they know when they relocated to this serene area that they would end up rearing 缺词填空：Mr Newton was a famous a____a scientist.One evening,n___of his family was in.Mr Newton was a famous a____a scientist.One evening,n___of his family was in her returned.He waited f______. 大家帮帮忙啊,急回答全的加分 Mr Newton was famous a_______ a sientist. The man ________(上周给我们作报告的)is a famous scientist. 比Petty更漂亮的单词叫?g开头的,还有点长 Isaac Newton(艾萨克·牛顿)was a great English scientist.翻译 舍弃 也是一种尊严你怎样理解 只要我们真实于满怀诚意地面对历史了 屈辱也能成为一种爱国的力量 这句话 行程问题环形跑道相背而行一个环形跑道,甲乙两人同时从某一点出发,相背而行,6分钟相遇,相遇后,甲又用4分钟到达出发点,乙这时离出发点150米,这个跑道有多长? 解不等式:x2-ax+a>x