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如图,AC=EF,BC=DE,AD=BF,求证：AC平行EF. 按要求完成句子训练 1.Does your father like sports?(做肯定回答） 2.He likes English and maths?（改为一般疑问句）I have some book in my backpack?(改为否定句） he likes skating,and i like skating too(同义句） he likes skating,and __ __I. We like our English teacher and he likes u_____ ,too空格填什么?US中文意思是啥？ 英语翻译本人小语种,多年不碰英语,实在力不从心.老师要求写一篇短小的essay,实在写不出英文稿子,只能写中文的求翻译了.强调!要人工翻译,大致意思对就可以了,不用逐字逐句翻译,通顺,没有 He likes mutton and she's likes mutton,too.(改同义句) --- he --- she like mutton.Our classroom is cleaner than ----(they)用所给词的适当形式填空They like Chinese food better than Japanse food,(改同义句)They ---- Chinese food ----- J Chen Fang likes English very much.(改为一般疑问句) DoesChen Fang likes English very much.(改为一般疑问句)Does Tom like China?(补全否定回答) 他擅长数学,而且英语也很好. he is ＿ ＿ maths ,and does ＿ ＿ english. 翻译 根号八的负一次幂 已知函数f(x)=lnx,g(x)=1/2ax^2+2x.若函数h(x)=f(x)-g(x)在[1,4]单调递减,求a的取值范围用导数做 . 一个分数的负根号次幂怎么求例如3的负3分之1次幂 He likes sports.I like sports too.的同义句 He____ _____ _____I likes sports 已知整式x²-5/4的值为6,则4x²-5x+6的值为 2x+4(20-x)=70这道题怎么解方程写过程五年级一共有17枚硬币共49分,硬币有两种.有1分和5分的,两种硬币各有多少枚?写过程,并写出是怎么做的. (-3)的平方*[(-3分之2)+(-9分之5)]写出过程和结果 3的平方减(5分之9)的平方等于多少 x为什么实数时,代数式5x²-2x的值比2x²+3x的值大2 已知实数x满足5x*x-3x-5=0,求代数式5x*x-2x-[1/5x*x-2x-5]的值. 已知实数x满足5x*x-3x-5=0,求代数式5x*x-2x-1/5x*x-2x-5的值. 16x-271=3(5-2x)的解 16x-271=3(5-2x)请把每一步都写清楚 16x-271=3*(5-2x) 若(3-a)x的a次幂+3=0是关于x的一元一次方程,求a-6的值 已知函数f(x)=-xˇ2+2ax+1-a在x属于〖0,1〗时有最大值2,求a的值 已知函数f(x)=x^2+2ax+1在区间[-1,2]上的最大值为4,求a值 御道街防尘怎么做 16x-271=3(5-2x)怎么列方程? 求小学5年级以下的解方程,不要百度里的. 负三的二次方 Maths is not as difficult as English=English is _____ ____ ____ maths.=Maths is ____ ____ than EnMaths is not as difficult as English=English is _____ ____ ____ maths.=Maths is ____ ____ than English=Maths is_____than English=English is ____ _____ ma 用所给的词写出适当形式:Maths is_than History.(much,difficult) much difficult than前面加什么is?