高温导致职业病

澍什么字 向高手请教下 向量数量积 设A=[a1,a2],B=[b1,b2] 1 A·B＝a1×b1＋a2×b2 2 A·B = |A| × |B| × cosθ这两个是数量内积, 两个A·B各表示什么意思?相同吗?1 A·B没有角度2 A·B 有角度两个A·B计算出来都是数 三角形的两条边长分别是3cm和4cm,一个内角为40°,满足这一条件且彼此不全等的三角形共有几个?如题. 三角形的两边长分别为3cm和4cm,一个内角为40度,那么满足这一条件,且彼此不全等的三角形共有几个? 求个AV,激情的网止 谁知道那个网有A片 说一声 maomao never ____(plays,playing,played)football为何 在△ABC中,CA=(a1,a2),CB=(b1,b2),试用a1a2b1b2表示S△ABCCA CB都为向量 My father has ridden a horse before. 为什么不用was rode? Li ming has never seen snow before ,____?A hasn't Li ming B has Li ming C hasn't he D has he 唐都城繁华表现在哪些方面 Mr johnson's never tried bungee jumping before .A isn't he B has he 英语翻译if sweet deathshould ever conquer melet me knowboys,let me knowif you hear him comingwon't you let me fleelet me go,boys,let me goone daydeath is gonna conquer mei'll be downwhere the waters flowi hope sweet heavenis a place for melet me 写一个阅读报告,要书名,作者,出版社,内容大纲和感受 乖用英语怎么说 ___by his death,his wife was determined____howA.greatly shocked;to fing out B.great shocked;finding C.shocked greatly;to find out D.shocking greatly;on finding out 求求你们赶快帮我解题喽 淘宝网算是一个market 还是businessa. businessb. marketc. both of the aboved. neither It was the perfect place to put a satellite disc如何翻译 在△ABC中,∠ACB＞∠ABC,1,若∠BAC是锐角,请探索在直线AB上有多少个点D能保证△ACD∽△ABC? It’s not a good place to go ______ the road.选哪个 为什么 A. on B. across C. through D. over 在△ABC中,∠ACB＞∠ABC.若∠BAC是锐角,请探索在直线AB上有多少个点D,能保证△ACD∽△ABC在△ABC中,∠ACB＞∠ABC.若∠BAC是锐角,请探索在直线AB上有多少个点D,能保证△ACD∽△ABC（不包括全等）请 The bady woke up ten minutes ago.的同义句 The baby ( ) ( ) ( )since ten minutes ago.是不是has been awake为什么 怎样解决男盗女娼?保障人人有衣穿,有饭吃吧? 满嘴仁义道德, 什么动物是一嘴的仁义道德,不理解,很多人都觉得自己是个仗义懂事的,觉得对得起每个人,其实不然,请问大家什么动物是一嘴的仁义道德,一肚子男盗女娼 无线电怎样架台 扫去掉提手旁还可以加什么偏旁 吹牛皮是什么意思? 道貌岸然,满肚子男盗女娼——这句话出自何处?道貌岸然,满肚子男盗女娼这句话出自何处?意思是什么? 误人子弟,男盗女娼 用英语怎么说? "满口仁义道德,一肚子男盗女娼"是讽刺现在哪个组织的?