问下 make ourself (1 mistake 2 mistakes 3 mistaken)why?

问下 make ourself (1 mistake 2 mistakes 3 mistaken)why? 问下..一首歌..歌词好像有:i can make you stronger and make you taller .. 已知m、n是实数,且[根号下(1+m²)+m]*[根号下(1+m²)+n]=1,问m、n之间的关系 问下大家3M净水器怎么样? 已知m、n是实数,且[根号下（1+m²）+m]*[根号下（1+n²）+n]=1,问m、n之间的关系 do the work是加ourself还是by ourself,为什么? enjoy ourself的同义词组 conquer ourself这个是什么意思啊?. The teacher explained it again and again so as to make---understood.A yourself B ourself C himselfThe teacher explained it again and again so as to make---understood.A yourself B ourselves C himself D itself 问下1、2 we enjoyed ourself very much!的答语是什么选it's ok with me 或i'm glad you did 或well done或that's right 我想问下m的平方-1=2神马意思 已知mn=-6问根号下（(m^2+1)(n^2+6)）=5 问下网速是133KB/s等于1秒下载多少M?,对了再加分, 可以问下为什么ma=M/NA吗? 问下裁决强度 1, 问下裁决强度 1, 是by ourself还是by ourselves?