已知双曲线的中心在原点焦点f1f2

核除了“核桃”还能组什么词? 核去掉木字旁换成贝字旁是什么字?注音并组词. could you swim when you were eight years old 为什么这里的were不用原型,could不是情态动词吗? He could swim when he was 5 years old.同义句转换 最近有什么重大新闻?10条 简要点 i could swim when i was six years old为什么用swimi could swim when i was six years old为什么用swim而不是swimming 求2012年1月份的时事政治(简短归纳就好,10条) 那个单词的简写?是老婆的意思吗? 请问LP的缩写是什么意思 我要找我的lP地址 14世纪文艺复兴运动兴起于_______(时间) 急：文艺复兴时间地点人物思想性质内容意义还有宗教改革时间地点人物思想性质内容意义-　启蒙运动时间地点人物思想性质内容意义-　科学革命时间地点人物思想性质内容意义、=-= 从背景、性质、内容方面比较文艺复兴运动与启蒙运动要简洁.简洁.从背景、性质、内容三方面回答.比较文艺复兴运动与启蒙运动的不同. started golfing when he was only ten months old的意思 帮忙把最近几个月的时事收集一下,最好要有内容,10条~每篇时事内容100字左右,谢谢! brb是什么的简写? BRB表示马上回来的的意思,是什么的缩写啊? 谁知道有关“文艺复兴”的历史背景和相关知识呀,老在电视和书上听到和看到,但知道甚少, Let's help the students!选择A.thank you B.all right C.good idea let's help these students together and make their w____of studying at school come t____急 tom started to learn to write when the age was two years old改病句一处 tom started golfing when he _____(be)ten years old Tom started playing for his national team when he was seventeen.(同义句）=Tom started playing for his national team _______ ______ ________ _________ _________. 上面俩“人”字,下面一个“马”字读什么? 求地道的英文翻译 “我唯一记得的就是离你而去,那是关于你最美的回忆”在线等 一撇一捺加个反犬旁是什么字 反犬旁的字有哪些反犬旁加一个巴是什么字 反犬旁加奏是什么字 英语PLAY WITH WATER To play 与PLAY WITH 哪个能接WATER要理由 She knew then that if another black woman could play the piano so could she.如何翻译 Before she could think twice,the water was upon her