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有理数的概率 在数轴上的[0,1]这条线段上任意砍一刀,恰好是有理数的概率是多少? 如果a是有理数,那么|a|>或等于0概率是_______. 阅读回答问题：Mrs Smith loves flowers.She has a small but lovelygarden.In spring,her flow-ers are always the best in her in her street.One day,a boy comes to her house.He is about seven years old and he has a lot of flowers in his hands.She op 阅读选择 Mrs Brown had a small garden behind her house,and in spring she planted some vegetables in it.She looked after them very carefully,and when the summer came,they looked very nice.One evening,Mrs Brown looked at her vegetables and said,"To Mrs Smith has a .She walks it eveMrs Smith has a .She walks it every day.She loves it very much. 希望的造句有哪些? 如图,AD,BE是三角形ABC的高且相交于点F,∠BFD=40度,求∠C这个 如图,△ABC是等边三角形,点D,E分别在AB,AC上,且AD=CE.BE,CD,相交于F.求∠BFD的度数. 正比例函数y=kx与反比例函数y=x分之k的图象相交于A,B两点,已知A的横坐标为1,点B的纵坐标为-31.求AB两点坐标2.写出这两个函数的表达式越详细越好,不好意思,最近没分,所以见谅 正比例函数y=kx和反比例函数y-k/x的图像相交于A,B两点,已知点A的横坐标为1,点B的纵坐标为-3求AB两点的坐标写出这两个函数的表达式 Mrs Smith is friendly ____ us.But she is very strict ____ our studies.A.for;with B.to;in C.with;in D.to;with 赞美树 精神 句子树的品质 古人对树赞美的诗句有哪些? 赞扬树的语句 再问您一个问题：－2的立方÷4/9×（－2/3）的平方 Mr.White is old,fat and rich.Mr.Black works for Mrs.White .And he works ___her garden( )A.for B.in C.to 如何求统计功效和第二类错误概率一份来自12个人的13岁学生的词汇测试数据给出H0:u=6.9 H1:u=7 标准差=1.6请问当样本大小n=多少时在α=0.05的显著水平下该假设检验的统计功效大于等于90% 女人老了依旧美 用什么词语最好表达 求ln（1+2^x)ln(1+3/x)在X趋向于正无穷时的极限,另外，如果不用洛必塔法则的话有什么办法求么？ 求极限,limx趋向于正无穷ln(1+3^x)/(1+2^x) 求ln(1+1/x)/(arccotx) x趋向于正无穷时的极限, 若a=1、b=15、c=0,则表达式a>b>c的值为 Tom doesn't like studying Maths,so he often (f ) in the Maths exams空该填什么 第29题,一定采纳,谢谢 求翻译29、30一定采纳 best的造句、better的造句、do our best造句以及他们的中文 matlab 中在一个语句中连着出现矩阵相乘和矩阵点乘,请问是按先后顺序来计算的还是有特殊优先级的? 用try his best造句 读诗句,猜人物1.功盖三分国,名成八阵图．江流石不转,遗恨失吞吴．（ ）2．但使龙城飞将在,不叫胡马度阴山．（ ）3.草堂留后世,诗圣著千秋．（ ） 看诗句猜人物A生子当如孙仲谋B吾爱孟夫子,风流天下闻． 诗句猜人物 “一个是（）苑仙葩,一个是美玉无瑕.若说没奇缘,今生偏又遇着他；若说有奇缘,如何心事终虚话.”这首诗揭示了《红龙梦》中一对青年男女的爱情悲剧,其中“（）苑仙葩”指的