病理学z第7次作业

如图,在四边形ABCD中,AC 与BD相交于点O,S △ABD：S△CBD=4:3则OA:OC的如图,在四边形ABCD中,AC 与BD相交于点O,S △ABD：S△CBD=4:3则OA:OC的值为 如图,ABCD是⊙O内接四边形∠ABD=∠CBD=60°,AC与BD交于E点（1）判断△ACD的形状,并证明你的结论；（2）若∠ADB=15°,AD＝4,求BD的长 地球有几大州 地球共有几个州?我记得好像是七大洲四大洋 请问分别有哪些洲哪些洋啊?每个洲分别有多少个国家,那些国家分别叫什么名字?请知道的朋友给小弟说说,小弟急需这份资料.还有俄罗斯到底属于 全神贯注的反近义词各3个！ how many day is it today 数学课如何导入 关于日历中的数学规律这节课该怎么导入比较好呢 五年级下数学名师讲堂视频怎样下载 全世界有多少国家,每个国家有哪些州及区? 求各个州都有哪些国家? 全神贯注的五个近义词 One should always be careful of ___ health.A.his B.one's C.their 有人可以帮忙修改一下雅思作文么?剑4 test1 task2Compare the advantage and disadvantage of three of the following as media for communicating information.State which you consider to be the most effective.Comics books radio television film The book show ____ (start) at nine.动词填空谢 meeting boys is sometimes difficult ,but in either case ,it is only beginning .many girls try all t 全神贯注的近义词 girls only(13-15)can u be my friend?How o r What's ur name?Can u chat to me?please,don't Deceive me.I am not looking for Translation.I am looking for answer.girls,If u do.email me.And tell me.what time is ur country?now. “那是cosplay” 用英文怎么说?快速回答~现在就要! Among them were the camera,the light and the radio.翻译 改错among them ,there were two presents which werereally interestedme.my sister buys me a book with color pictures about Among them were skilled sritics of artwork.What's meaning of "sritic among them ..在句子里是什么用法?among them后面怎么能跟三个名词连用?his book is organized around a few central themes,among them the basic causes of misleading statistics,"mutant statistics"and promble in comparisons. why dont you play the piano now?--------- ---------playing the piano now? 为什么要做痴想和幻想这两个词!因为明天 我们要在全班的同学面前.说：不好好学习却想去的好成绩,无疑是痴.为什么要用痴想这个词.老师跟我们说：1解释2词性3对象.要按照他的提示来告诉 it is nice/kind of sb. it's ____nice of him to help me可不可以添rather “Lies the seed that with the sun"s love,In the spring becomes the rose”是那首歌? I love the countryside,especially in spring.是什么意思 lies the seeds with suns love,in the spring becomes the rose.什么意识 Lies the seed that with the suns love,In the spring becomes the rose”. Each of us has a good plan for the holidays 同义句 We ___ ___ a good ___ ___.