sin4x/sin3x

初一开学趣事日记大全400字 初中暑假日记大全600字领成绩单和快开学 如图,梯形ABCD中,AD平行于BC,AC与BD交于点O,说明三角形AOB全等于三角形COD是全等,不是面积相等 如图,已知梯形ABCD的面积为S,AD∥BC,BC=b,AD=a(a＜b),对角线AC与BD交于点O,若△COD的面积为2S/9,则a/b为多少? 英语翻译Ooh,you're searching for something I knowWon't make you happyOoh,you're thirsting for something I knowWon't make you happyOoh,you did it all again,You broke another skinIt's hard to believe this time,hard to believeThat my heartMy heart's Do it again!再来一次!这么说对吗?do是助动词啊,辅助动词的,这里也没有动词了啊,it是做什么的? 英语翻译别人回信就这么一句哈.我就不明白他的意思是"I will do it again."还是质疑我"Will you do it again.不好意思英语基础不好不太熟悉他们的常用方式 狼心狗肺是什么意思啊 There some rains this afternoon.A will have.B Will be.C are going to be.D is going to be There ___ some showers this afternoon.A.will be B.is going to be there will be some ----this afternoon .a showers bshower c showering 根据句子句首字母填空,完成句子.There will be some s______ this afternoon.说下原因.是storms 还是 showers。能不能填storms。 狼心狗肺的人是什么样的人? 已知角aod=角boc=90 度角cod=35度 则角aob等于多少度 为什么说狼心狗肺是狼的心怎么了?狗的肺怎么了.非要这么说啊 为什么不能在火星上居住?简单详细．．．．．．． How many books have they read this week?----In fact ______为什么不能填nothing或no many? 翻译：I'm that star up in the sky,I'm that mountian peak up height. The star what in the far away sky that is my missing heart That is my little stars in the sky shining I have decided to love you will not give up easily啥意思 your help I can‘t finish the work怎么填your help I can‘t finish the work.A UNDER B WITH C WITHOUT D NO填那个your help I can‘t finish the work。A UNDER B WITH C WITHOUT D NO填那个，在your的前面 人生就像蒲公英,看似自由,却身不由己!怎么用英文翻译? 求高手英语翻译一个句子：悲伤的蒲公英已起飞,不再为谁等候,不再为谁停留. 蒲公英吹起了满天的浪漫,空气华丽的旋转,点亮了风里的寂寞.准确的英文翻译,拒绝机翻. 各种恐龙的介绍例:独角龙,独角龙全长约6米,头顶有一只角,长在两鼻孔中央,行动敏捷,喜欢群居,以植物为食.写三种不同的恐龙,不用太长. 恐龙的介绍恐龙!不要一种!大概的说一下!重点哦～100字左右（*^_^*) Yao Ming is a _____ ball star.He plays basketball _____.填good或well yao ming is a basketball star.Heis good (　)basket characters是什么意思 戊戌政变后,康有为梁启超避往国外,而谭嗣同不愿离开,甘愿未变法儿死,评价,为什么 i love the sunshine还是i love sunshine? Originally,I that love you是甚麼意思啊