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The old man the boat.的树形图怎么画啊?这个句子都不完整啊? I Can'T Help It (I Just Do-Do-Do) 歌词 Where did Jane see the man eating? 以担当为题的作文 作文 以 担当 为题 1.在三角形ABC中 A=60° C=45° b=20.2.在三角形ABC中 A,B,C 的对边分别为a,b,c且 a分之sinA=b分之cosB=c分之cosC 判断三角形形状 问几到解三角形的题1）已知三角形ABC三边分别为7 ,4*3个平方根 ,13的平方根,则最小的角是多少度2）在三角形ABC中,a,b,c分别是角A,B,C的对边,若2b=a+c,则角B的取值范围是多少3）在三角形中,若C=3B, (1)在三角形ABC中,若A+B=120度,则求证:a/(b+c) + b/(a+c) =1(2)三角形ABC中,若sinB=sinA*cosC,且三角形ABC最大边长为12,最小角的正弦为1/3,①判断三角形ABC的形状,②求三角形ABC的面积.最好有一定的推导过程 ( )something for your mother is the best gift.(do) 用适当形式填空 帮忙造两个句子,祈使句,如图,第三条 造祈使句用中文造 造一个祈使句. 造5个祈使句是英语 double这个词是什么意思. we shall walk to the summer palace改为同义句 “高于二倍”或“比二倍还多”用英语怎么表达?想用到double 这个词 BF是什么意思? 英语翻译1、Statistically merging error distributions is an effective way to assess the combined e\x0bect of multiple sensors.2、The ad hoc sensor networking and smart dust community often addresses the related issue of adaptive \x0cfidelity.A l you syetem has been modified please remove the modification to play on this server code You system has been modified .Please remove the modified to play one the server.Code（20）不知道为什么这样~!请各位高手指点!~! 已知：△ABC中,a=5,b=8,∠A=30度,求∠B,∠C,c已知△ABC的三边是a,b,c,求中线AD的长 急设锐角三角形ABC的内角A,B,C的对边为a,b,c,且a=2bsinA.求cosA+sinC的取值范围.若按照解出cosA+sinC的值再进行判断,应该怎样做呢? 听英语老师讲：My mother said,"you should do it by yourself".又有听到He did it himself.反身代词前l到底加不加by? Thank you wery much!I'll be beater soon,you are my good friend! I‘m sure we'll have a good time at the party .同义句 I'm sure we'll()()at the parry ·请教·关于一道解三角形的题三角形ABC中,AB=2,BC=5,S三角形ABC=4,则AC=? ·请教·一道关于解三角形的题sinA的平方=sinB的平方+sinBsinC+sinC的平方,则A=? 问一道解三角形题：在ABC中,D为边BC上一点,BD=2DC,角ABC=120°,AD=2,若ADC的面积为3减二次根下3,则角BAC=多少? these is a cat on the tree.these is a photo on the 表示某人也是有几种说法?是“So+助+主”还是“So+主+助” 关于担当的作文 danced,my,in,mother,beijing,last week,怎么排序今天作业急呀40分钟之内有加分