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比如三相电动机的相绕组是1.3欧姆,在三角形接法中断开一连接片测电阻怎么会得到2.0的电阻值?应该是1.3倍应该是1.3的3倍吧 比如三相电动机的相绕组是1.3欧姆,在三角形接法中断开一连接片测电阻怎么会得到2.0的电阻值?应该是1.3倍 电机是三角形连接,用欧姆档测电机接线点间U V W的电阻为什么接近零呢 成语玩命猜 闻下面封住 是什么成语? 英语翻译Red poinsettias are a traditional part of Christmas celebrations,which is why almost all of them are sold at wintertime.这个句子怎么翻译呢?我看提供的参考翻译是“红色一品红是圣诞节庆祝活动的一部分,因 成语玩命猜,卷字㔾加一横里面两竖什么成语 静摩擦力帮物体加速时静摩擦力的方向方向是否与运动方向一致 一支笔加一张纸猜个四字成语 英语翻译2.then have juice pineapple some3.eight have dogs four eyes4.the read blackboard plesae words on the（,.） We will take a bus（ ）Rose Garden Road.A.in B.of C.off D.on I told him to go d____ JiangHai Road and take bus No.1 in east of the s__ cetre.I told him to go d____ JiangHai Road and take bus No.1 in east of the s__ cetre 首字母填空 我听到一首英文慢摇的歌曲,开头唱的Baby,其中有you drive me crazy ,还有i should be so lucky , 找歌,you dont understand,its crazy ...girl like you to know是什么歌?前面有一段比较悬疑的音乐,（没听懂的用省略号代替啦）里面有I know ..its my ..you dont understand,下面一句没听懂, 然后是this is crazy 一首英文很有节奏感的歌 歌词有hey pretty girl u will drive me crazymake me lonely baby really busy me on...听懂的不算多 () It's crazy ___ you to let such a young girl drive your car.A for B of C about D on 物重6牛,弹簧秤竖直向上拉,示数为4牛,水平地面给物体的支持力是多大?怎么可能被拉起来。。是2还是6？ 闻字下面多一横猜成语 Where is your promise?If you have make one,please make it come true! 让氧气燃烧变成二氧化碳之后,体积会变化吗?其实我在想：拔火罐的时候，氧气燃烧变成了二氧化碳，体积变化了，导致拔罐产生负压。还是因为罐内气体温度高，罐外温度低，导致拔罐产 一个扇形的半径是15cm圆心角是90°这个扇形的面积是（） 跪求大学英语演讲稿What are you proud of?还有一个题目：How to enrich campus activities after class? 请问look up and down .可以说look up and down the hall吗 英语翻译God help the girlThere is no way I'm looking for a boyfriend There is no way I'm looking for a scene I need to save some dough I'm a working girl,you know I'll fend attention off I keep to myself I love my room,I'm getting used to sleepin 请问谁知道"so help me girl”怎样翻译? 带龙的词语『四字』 关于CK产地make in china的问题朋友在美国带回一件CK皮衣.说是在美国专柜买的.但拿回来才发现衣服领上有个make in china的小标签.这是咋回事. “All the kids make fun of me.” The boy cried to his mother.“They say I have a big head” 为题英语演讲稿 高速钢中,合金元素都起什么作用? Comparison between British English and American English 的英语文献综述英语在当今世界政治、经济、文化等领域发挥着暂时无其他语言可以替代的作用,英语除了是一些国家的母语之外,还作为第二语言或 一根弹簧,用2牛的力压它缩短2厘米,用十牛的力拉它,申长20厘米,求弹簧的原长? 有一根弹簧,当用2牛力拉时长度为5厘米,用3牛力拉时长度为7厘米,求弹簧的原长 Have you made up your mind___where to go?A.about B.on 为什么选A不选B解释下谢谢