冬天的风景作文200字

几道解三角形 数列的题1.在三角形abc中,若sinA=2cosBcosC,则tanB+tanC=?2.在三角形abc中,若lgsinA-lgscosB-lgsinC=lg2,则三角形abc的形状是?3.在三角形abc中,若tan（A-B）/2=（a-b）/（a+b）,则三角形abc的形状是?4 I was bron in the year of _____________________.是神马意思?1 涉及到解三角形和向量.在△ABC中,∠A,B,C的对边分别为a,b,c,向量m=（a^2 ,b^2）,向量n=(tanA,tanB),且向量m//向量n,那么△ABC的形状为什么? “that was the year 请问怎么自学英语语法,零基础, like是什么词 like是什么词,应该怎么用? shirt的同类词求求,要快 I’d like to buy {a shirt}对括号内句子提问 I like__(bread)用括号里词的正确形式填空 i was born in wuhan in 1996对划线部分提问 划线部分：in wuhan in 1996 ____ and ___ ___you born 求一首有点印度风格的英文歌曲（女声）叫什么名字? 适合女生吉他弹唱的有感觉的英文歌 2011北京大兴初三二模物理23题 我走进屋子是他们正在看报纸的英文意思 看报纸上有一个Hold姐, How much are this pair of shoes?哪个地方错了? How much are your green shorts?的同义句是什么? How much are your green shorts?(改为同义句） How much are your green shorts?同义句 how much are your green shorts(改同意句) _____ ______ the _____ ______ how+much+is+these+shorts怎么改正 I was born __ 1992 A.on B.in C.at I was born( )( ）February.A.in B.at C.on I joined the army the year/month ( that ) my father died.Mac came to see me the week ( that ) we went camping. His father died in the snowstorm last year 同义句The snowstorm ______ _____ ______ last year His father _______ _______ ______ in the snowstorm last year 2010大兴二模数学试题及答案立地成佛.佛曰：善哉. 我想要自学英语,有没有关于英语语法的书,实用一点的? 英语翻译达新尼 水经注 清水 全文翻译 快~~~~在线等全文：（黑山在县北,白鹿山东,清水所出也.上承诸陂散泉,积以成川,南流,西南屈.瀑布乘岩,悬河注壑,二十馀丈.雷赴之声,震动山谷.左右石壁层深,兽迹不 水经注-清水 翻译要最完整 急事后必有重谢 拜托各位了 英语翻译黑山在县北白鹿山东,清水所出也.上承诸陂散泉,积以成川,南流,西南屈.瀑布垂岩,悬河注壑,二十余丈,雷扑之声,震动山谷.左右石壁云深,兽迹不交,隍中散水雾合,视不见底.南峰北岭,多