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一道三角函数方程,(sin 20度·sin A)/(sin 80度·sin A-20度)=1求A的度数?正确答案是30度请将过程及用到的公式都列出, 辛的部首 一个三角函数方程根号3乘tan（45-x)= tan(45+x) 用at on in填空.拜托,就两题.谢谢哦~1.___Saturday evening2.___my cousin's house 雪蛤哪里卖 you have reached your population limit 什么是雪蛤 《把工作做到最好》读后感把工作做到最好心得体会,此书是金城出版社 要填关联词哦!1.闰土是闰月生的.他的父亲叫他闰土.2.闰土混刺猹.闰土会捕鸟. 理由一：购物天堂 如果你要去世界上最好的购物场所,新加坡绝对 不会让你失望.用英语怎么说 深圳市一个购物天堂,他打算在那里买他需要的东西用英语怎么说 关于诸子百家诸子百家中的儒墨道法兵的核心思想,请简单概括,内容不要太多,有自己总结的最好.在某些学派有多个代表人物,请分别说出他们的核心思想.回答过的再回答一次,我们期末考啊 诸子百家各讲得啥道孔子.孟子.老子~他们的理论都是啥 用in ,on ,at 填空my uncle usually goes fishing () the weeked、the story happened () a cold winter morningmy friends give me some presents () christmas every yearsandy always goes to the library () mondays 用 at in on 填空He is going to telephont __ five o'clock. 2 My birthday is ___ May 21st. 3 It is always cold____February 4 My father was there ___ 1984 5 He is going to arrive ____Tuesday. 小豆豆第一次公开课的心得怎么写 羚羊木雕文中划线部分ABCD句分别使用了什么描写方法 任何两个等低等高的三角形都能拼成一个平行四边形.对吗? 小孩子背诵哪些古诗文合适唐诗300首好象太多了 老师在教室后面听课一周、 感想. 用in,on,at填空my parents enjoy watching news on tv () the eveningpeople get togrther and eat mooncakes () the evening of mid-autumn festival 要八类笑的词语越多越好 用at in on填空1、There are two doors the wall of his room2、There are two pictures the wall of his room3、Let me show you the map4、Some people are waiting for a bus the bus stop5、Do you know the girl standing the door6、Hi is the door7、W 说有关"笑"的词语种类"笑"指一种面部表情,在汉语词汇中,形容笑的词语很多.请阅读下面表现"笑"的词语,说说他们分别指哪一种"笑":捧腹:齿冷:拊掌:喷饭:莞尔:解颐:哄堂:绝倒:粲然:轩渠:请全 英语翻译elas fala te,amoeu.nao sabiya.sumblasil.july. 英语翻译特别急,麻烦会葡萄牙语言的高人帮我把下面目录翻译成葡萄牙语言好吗?我今晚需要印刷这个说明书,3.24 SHORTCUTS 513.25 SETTINGS 513.25.1 Touchscreen caliberation 513.25.2 Phone Settings 513.25.6 Net Sett 英语翻译boa tardedevo informa que ja foi feita transferencia para o seu banco,falta agora o seu banco aceitar para que eu possa receber o comprovante e te enviar,devo passar este comprovante no maximo na segunda feira,isto ocorre por ser uma tran 最适合两岁儿童背诵的诗歌长度：每句五、七言,四句最佳,最多不超过八句.韵律：琅琅上口 十天突破雅思口语需要怎么做? 测量星系之间距离为何需要高精度原子钟? 盒子(复数)用英语怎么写 米饭的英文和复数