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一道高中物理双杆问题,求大师解答我一个小问题~~~如图所示,竖直平面内有无限长、不计电阻的两组平行光滑金属导轨,宽度均为L=0.5m,上方连接一个阻值R=1Ω的定值电阻,虚线下方的区域内 我就混乱了,处理这种选择题的时候,人的脚到底给杆子施加力不,还有人是受到摩擦力拉力重力三力平衡 还是受到摩擦力重力而力平衡……有这么一道题湖南卫视“智勇大冲关”栏目最后一关 英语翻译如题! The Moment of Dreams的歌词的中文意思如题···歌词如下Up in the air,far away from here Looking for a way,never ending pain And time after time passing by,all the same Every step you take seems all in vain So why are there such hard road They couldnot see anything unusual.They could()()unusual.(同义句） he couldn't see_ Asometing unusual Banything unusual Cunusual anything Dunusual something请说明理由,急... They ----------(look )at the blackboard,but they couldn't ------(see) anything .是不是looked,see? I couldn't see anything unusual in this room.请问这里的see为什么不用过去时? 皮肌炎是什么病呢? 为什么杆一端受的弹力方向不一定沿杆的方向? I can smell something burning . I can smell something burnt.哪句正确? smell sth.____ (烧糊)```````````` 1.sth.和烧是被动 用BURNT 2.强调正在 用BURNING 哪个对?smell sth.____ (烧糊)````````````1.sth.和烧是被动 用BURNT2.强调正在 用BURNING哪个对? 英语解惑 I smell something () kitchen.A burning B burnt C being burnt D to be burnt.我知道要选择一个表状态的选项 我可以排除CD 但是A,B我不知道怎么判断哪一个是表状态的 难道加Ing就是表状态吗 风筝有风海豚有海 是哪首歌的?可以提供全部歌词么 Seduction Of The Innocent 歌词 The Innocent 歌词 The tragedy of innocent是什么意思 echoes of the rainbow歌词 .杆对物体的弹力总是沿着杆是什么意思?沿着杆的方向是什么方向啊?举个例子? 有那些描写天气、友情、人做事认真的成语或古诗名句. 描写人做事认真的古诗 表现做事认真投入的词 弹簧（轻杆）的弹力不是与运动方向垂直吗?为什么会做功 当潮湿的空气碰到干燥的空气,会如何?或是干燥的空气能带走潮湿空气中的水分吗?干燥的空气能加速水的挥发或蒸发吗? Could you tell me how to gei to the Capital Stadium什么意思 Can you tell me the way of the National Stadium?还是Can you tell me the way of get to the National Stadium? 怎么把弯铁丝变直实用点的 kangaroos live in australia.mather kangaroos ( )their babies everywhere. kangaroos live in Australia改为一般疑问句 kangaroos,and.live in .填空kangaroos,and.live in .填空 Please tidy up your things.改句型 You need to --------------------. 莫愁前路无知已,天下谁人不识君,这句诗出自哪里,作者是谁,具体意思是什么