如图7-58,AD是三角形ABC外接圆的直径,角ABC=角CAD,圆O的半径OA为5am,求AC的长

吴起何如人哉? 同样是在重力下形成,为什么星系往往是盘状而恒星总是球形? 星系都是盘装的吗? 请你用4字词语形容邱少云和徐向前在你心中的形象 Our club is open to adults only.________your children have entered without permission.A.There seems that B.It seems to be C.There seems to be D.It seems that The piano club is open to 什么 (a person belonging to a group ) only good marrige就这个题目写一篇小的英语作文,200字左右, 59页94.The factory ------I visited yesterday was not the one ------I once worked A.which ,where B.which,which C.where ,which D.where ,where为什么 The fatory which I visited yesterday was not the one where I once worked.那个为什么用where,which. wrench a marrige 请问带“心”字的成语描写心里着急的 描写心里忧愁的（带心字的成语）最好在下午两点之前回答, He said she would leava the message on thHe said she would leava the message on the headmaster's desk 草塔中学的英文名是什么啊 待雪草的英文名 天津青豆今年的产量如何.价格怎么样 青豆粒的营养价值 吴起是位怎样的人?吴起这认真的太复杂啦!到底是位怎样的人!我要的是大家对他的评价啊!反对摘抄! 英语翻译英译中要求：要有美感 带高的成语有哪些 After dinner in the evening.这句话对不After dinner in the evening.对的话,怎么翻译? 赞美企业好词好句 吴起是个什么样的人 有没有人知道 很难的哦who is making so much noise in the garden?_____ the children.A.it is B.they are 为什么不能选择b 有没有人会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会会 请问下有没有人知道下面这题英语选择题应该选哪个选项?The President went on to say he was （pursuing） a new strategy, but not everybody was convinced. A.chasing after B.running after C.going after D.tracing after上题中括 有没有人知道有关小学择校的百科知识题,要是选择题（单项选择,双选都可以）中间语数英知识与其他知识的比大约在7：3左右就行了!最好有100道, 有没有人觉得全国I理综一道物理选择题怪怪的?万有引力那题太阳对月球的引力比地球对月球的引力是2那不是月球被太阳吸去了? his mother doesnt work at the post office any more his mother ____work at the post office _____ ___ 英语单词最快的记忆法? if you dare tell on me when the teacher gets back ,I won't say a word to you为什么dare后面不加to? 最好的单词记忆法谁知道最好的英语单词记忆方法啊,我要自学英语,可是老是记不住单词,真麻烦,有经验的给说说!