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白天天上有一个白圈围着太阳是什么东西 这种白色的有一圈黑的食物叫什么? 使用氢氧化钠必须注意安全,这是为什么速求 使用氢氧化钙固体时必须注意安全,其原因是 单项选择：Do you want _____ A.else anythingB.anything elseC.something elseD.other anythings I Do Want You 歌词 want do you do?同义句 ___ do you want to ___A.what...is B.who...do C.when...are D.where...go Soon they got to the bank,—— stood a big pine tree.答案是where,但是为什么不用in front of which? at night they tied the boat to big tree bt the river bank near a village这个句子有毛病吗 转矩的单位“N·m”具体什么意思?把一根一米长的铁棍一端固定,在另一端施加1牛的力.产生的扭矩是不是1N把一根一米长的铁棍一端固定,在另一端施加1牛的力.产生的扭矩是不是1N·m?2牛的力 扭矩与功 扭矩的单位是N*m,功的单位也是N*m（如：力F在S米的距离内做的功） 可以等效吗 赤道上一点到晨昏线上各点的距离相等是什么情况？二分日？ 配置一定量浓度的naoh 注意事项主要是注意事项要注意什么?（就像什么、虎口对着标签什么的） 根据首字母完成句子inthemorning,heusuallyb________teethbeforebreakfast the open boat （海上扁舟）的中文版 要全的 根据首字母完成句子 根据根据首字母完成句子there is a m____ of china on chian on the back wall of our classroomthe little girl with long hair is good at d_____picturesjim and mike are in the same .so they they're c_____listening to m______canmake me relaxe THE CRANE怎么样 翻译一下VOA3月六号的‘The Open Boat’ by Stephen Crane igbt最大可以承受几倍电流 用所给的首字母完成句子、、Are you ready to play the game t( ) with me? IGBT允许电流反向吗? 根据所给的首字母,完成句子1.My grandfather was poor when he was young.He didn’t go to school.He taught h___________ everything.2.Climding hills is a very t___________ sport.You will feel tired.3.How d____________ the food is!But it’s a 根据所给首字母完成句子1.Please c____ here ang take these things to your father.2.The c___ of his eyes is biue.3.He looks great in y___ T-shirt.4.The bananas are still g___,you can't eat them.5.I will buy the dictionary at a very good p___. 1do you〔e 〕your trip to australia2the teacher is p at the picture on the biackboard ahd asking me a quertion3piease be q when we are having a class4w instead of men often go shopping on sunnday5pieasw do not be too l on the train othes may be sle 两块磁铁之间有没有支持力一块磁铁放桌子上 另一块放在第一块上面 （吸引）下面的对上面的有无支持力?为什么? 一个吸铁石和力的关系在小铁球从斜坡上滚下来运动的正前方放一磁铁,小球会怎么样?会加速么?这说明了什么问题?如果不将磁铁放置在正前方会怎么样?为什么?说明了什么问题?这两个实验都 腐蚀阀门 怎么控制阀门的腐蚀程度 （把句子整理成一段通顺、连贯的段落. （　　）当今科学表明,每一个正常的大脑,在构造上并无多大的差别.（　　）自古以来,博闻强记,过目成诵被视为智力超群的象征,那些天才、伟人的 线性代数 A= | 1 -1 0 | | -3 2 1 | | 0 0 3 |.计算AA*和detA*的值.本题思路是?该怎么算呢,