Hello everyone.My name is___.I come from__ I'm very happy to come here to study with you.
This class feels just like a big family to me.
I'm interested in sport,pop music.I also enjoy pla...
Hello everyone.My name is___.I come from__ I'm very happy to come here to study with you.
This class feels just like a big family to me.
I'm interested in sport,pop music.I also enjoy pla...
最新问答: english的英文 氢原子跃迁光谱问题,一个氢原子由基态跃迁到n=4的激发态时,此氢原子的光谱中为什么只消失一条明线?我想:从4跃到1是放出 KCl和KOH的混合物9.26g,将它溶于40.14g水中,然后加入14.6g溶质质量分数为10%的盐酸恰好完全中和.求 有几组勾股数(1) 3,4,5(2) 6,8,10(3) 8,15,17(4) 10,24,26第(5)组勾股数是——— ( ) 21.Some of the cows in the shed are mine; all( )belong t 博士研究生的英文怎么说? 英语翻译:我们刚一做完作业,就放学了 甲同学骑车从学校到火车站,乙同学骑车从火车站回学校,甲骑车比乙每小时快2千米,两人在上午8点同时出发,到上午8点半两人相 我的专属恶魔,英文怎么写?我的专属恶魔英文怎么拼写? 已知两等差数列{an},{bn},它们的前n项和分别是Sn,S'n,若Sn/S'n=2n+3/3n-1,求a9/b9 法国史学家马克o布洛赫在《为历史学辩护》中指出:“在进行历史研究时,人们往往迷恋于寻找单一的原因,便错误地将原因归结于某 由大于10的所有自然数组成的集合 China’s efforts on food production and safety will It is time for them () have lunch. 设计英文解释 Nous y sommes revenus il y a trois jours.第一个y跟在助动词前而不是过去式动词前 氮化硅(Si 3 N 4 )是一种新型陶瓷材料,它可由石英与焦炭在高温的氮气流中通过以下反应制得: (1)配平上述反应的 已知实数a满足不等式:(a+1)的绝对值0 我没计算器,请大家帮我算下这2个算式 No woman can take a man from you,unless he's willing to leav