中国导弹发射时的视频

快来帮帮忙,一道数学题,以O为圆心的两个同心圆中,小圆的弦AB的延长线交大圆与点C,若AB=3,BC=1.则与圆环的面积最接近的整数是下列四个数中的哪一个?说明你的理由.A.9 B.10 C.11 D.12 A dog starving at his master's gate predicts the ruin of the state1 I would rather have a mind opened by wonder than one closed by custom 2 Gather you rosebuds while you may ,old time is still a-flying,and this same flower that smiles today,tomorrow 请翻译成汉语,最好是谚语A dog starving at his master's gate predicts the ruin of the state.1.Don't look forward to the day you stop suffering,because when it comes you know you'll be dead.2.A dog starving at his master's gate predicts the r 英语翻译会不会是自身难保 无法庇护一类的意思呢?该怎么翻译更好? In his State of the Union adrress in February ,the president .求大神翻译. 1.A dog starving at his master's gate predict's the ruin of the state.2.Don't look forward to the day you stop the suffering,because when it comes you know you will be dead.3.I would rather have a mind opened by wonder than one closed by custom.4.Gat x平方-4y平方-x+2y要用分组分解法做做对了加分,还有一题……x平方-2x-b平方-2b 还是分组分解法 某鸡场有三间饲养棚,第一件饲养棚有261只产蛋鸡,第二件饲养棚产蛋鸡占全场产蛋鸡只数的五分之一.那么,第三间饲养棚的产蛋鸡占全场总只数的七分之几? 这一化简过程哪里出错了? 怎么化简 求过程 the head of state of canada is represented byA the Monarch B the President C the Prime Minister D the Governor-general 我很奇怪为什么有人说是选择B 加拿大由总统吗?如果旧传统意义上说应该是Elizabeth 但如果说是政府 state of war加拿大一关!rt!等级4,. Who is the head of state of the U.K. If the Netherlands is a kingdom,how would you call the head of state?为什么呢? [(-√2)^-2]^-1/2 这是怎么化的 外面那个-1/2 怎么化成? 化简：｜｜x－1｜-2｜+｜x+1｜. 第5题 比和比例 化简比.1.2 ：2.6 secretary os state of the State of California是什么?加洲洲秘书?哈哈,该怎么组织成人话?RT 二次根式化简题4倍根号15分之4 二次根式的化简习题根号3分之7化简过程 如果代数式(2x的平方+ax-y+6)-(2bx的平方-3x+5y-1)的值与字母x的取值无关,求代数式3分之1a³-2b² 若代数式（2x²+ax-y+b)-(2bx²-3x +5y-1)的值与字母x的取值无关,求代数式3（a²-2ba-b²)-(4a²+ab+b²)的值.） 若代数式（2x²+ax--y-b)-(2bx²-3x+5y-1)的值与字母X取值无关,求代数式3a²-2b²-(2a&s 若代数式(2x²+ax-y+6)-2bx²-3x-5y-1的值与字母x无关,求代数式a的b次方的值 若代数式(2x²+ax-y+6)-(2bx²-3x-5y-1)的值与字母x无关,求代数式3分之1*a的3次方-2*b的2次方-（4分之1*a的3次方-3*b的2次方）的值 Golden Age,The 歌词 The Golden Road 歌词 已知-1＜x＜0,化简√（x²-2+1/x²）-√（x²+2+1/x²）要过程..谢、请尽快 已知（x-2y)的平方-2x+4y-5取最小值,则x-2y/3的值为 THE GOLDEN BOUGH怎么样 求电子书.《The Golden Bough》找James Frazer 的The Golden Bough两位辛苦了.二楼的可以下载.所以给他分.同样谢谢一楼.一楼的是在线看的.