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将来正在进行时与过去将来时有完成式吗? 一道简单文科数学的集合题A={x|y=x+1,x属于R}B={y|y=x^2+1,x属于R}则A∩B=?答案为{x|x≥1}但是这两个集合一个是x一个是y啊, 一.一个均匀的正四面体上分别涂有1234四个数字,现随机投掷两次,正四面体面朝下的数字分别是b,c.(1)记z=(b-3)^2 (c-3)^2,求z=4的概率(2)若方程x^2-bx-c=0至少有一根a属于{1,2,3,4}就称 一,已知A(0,2),点B,C在直线y=-1上运动,且|BC|=2倍根号3(1)求三角形ABC外接圆的圆心P的轨迹E的方程;(2)过定点D(0,3/2)作相互垂直的直线l1,l2,分别交轨迹E于M,N和RQ求四边形MRNQ面积的最小值?二,已知函 .Your father's brother's daughter is your ___. A_____has there hands and it can tell us the timeThere are twenty—four_______in a day.The third day of a week is ______.He often goes to Beijing by plane.So he ________to Beijing.She often goes to work 分别是什么如题 广东省的 Did you tell your brother the good news at that time?No,my mother (tell)him 文科数学一道圆的题目```若x^2+y^2+(入-1)*x+2入y+入=0表示圆,则的取值范围要原理 Is your brother good at ( )(tell) jokes? Tell your brother not ( ) matches.It's dangerous.A.play with B.to play withC.playing on D.to play on lady gaga 的中文是什么 lady gaga的中文名叫什么? 1.人体缺少某种元素就会生病.下面这些病是缺少什么引起的?侏儒症( ) 大脖子病( ) 贫血( ) 克山病( )2.你知道这些热特殊的日子吗?5月31日( ) 7月11日( )3.成语对对子(注意对仗要工整发,意思要相 1.请填写我国著名佛寺所在地.白马寺() 灵隐寺() 大慈恩寺() 少林寺()2.请写出下面戏曲人物所属的角色行当.诸葛亮() 杜十娘() 钟馗() 武松()3.根据数字猜成语.12345609() 1+2+3()4 LADY GAGA是什么意思 half the man中文意思 I am not the man I was是什么意思 do you wake up at your usual time after a late night,or do you sleep until later? it's about time and your time's _______(wake) up! It's time for breakfast.要有原因,是不是写Waking? 求解 男人英文怎么写 写man还是写men.额,开了一家男装店,想取个名字 应该用哪个? where is your brotherAt______A.Mr Green's B.the Smith'sC.doctor'sD.house of Mr John为什么选A where is your brother?-Where is your brother?-He is in _______,Friend Hotel.A.the Room 401B.the 401 RoomC.401 RoomD.Room 401 Where _______your brother________ (come)from?这是道填空题 I like doing s_____ on weekends. Some friends come and go like a Some friends come and go like a season .Others are arranged in our lives for good reason? my father andmother like reading and doing some(?) 这是过去进行时的被动语态吗?He was so surprised at being discovered that he did not even try to run away.怎么理解 being discovered ,是过去进行时的被动语态吗?那being前面缺少系动词啊. 英语过去进行时怎么变? 德语第一分词的问题第一分词由“动词不定式+d”构成为啥是动词不定式啊?不就是动词原形么? 德语 第一分词关于德语第一和第二分词的问题。比如说第一分词是主动关系 正在进行,而第二分词是被动关系 已完成状态。那么则有das gekochte wasser,但是das kochende wasser岂不是矛盾,因为第 德语第一分词这个我也不太确定,德语中第一分词是不是都是VI啊……怎么没人啊