5到8到空格键的数字码39到14到7到后边的一个空格键的数字码39,这两个空格键的数字码39中填什么数字

图1是一个3×3方阵图,每行的三个数、每列的三个数,每斜对角的三个数相加的和均相等.
如何把9个连续整数迅速填入一个3×3方阵,使每行、每列、每斜对角的三个数相加的和均相等,是我们祖先早就在研究的问题.古代的“洛书”、汉朝徐岳的“九宫算”就揭示出祖先们得到的神奇填写方法.图1显示出把-4,-3,-2,-1,0,1,2,3,4填入一个3×3方阵,使每行、每列、每斜对角的三个数相加的和均相等的一种方法.同学们,你能正确填写吗?马上试一试:
(1)请观察图1中数字的填写规律,然后将下列各数组中的9个数分别填入图5、图3、图4所示的9个空格中,使得每行的三个数、每列的三个数,每斜对角的三个数相加的和均相等;
①6,5,4,3,2,1,0,-1,-2
②9,8,7,6,5,4,3,2,1
③-8,-6,-4,-2,0,2,4,6,8
(2)拓展探究:在图5所示&9个空格中,填入5个2和4个-2,使得每行、每列、每斜对角的三个数的乘积都是6;
(3)拓展再探究:将25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1这25个数分别填入图&6所示25个空格中,使得每行、每列、每斜对角的五个数相加的和均相等.
(1)先分别确定正中间的数字,再根据题目要求求解;
(2)四个角上填写-2,其余为2;
(3)先确定正中间的数字13,再根据题目要求求解.
解:(1)图2,3,4如图所示:(填法不唯一,图3中只要按由小到大,斜角填写均可)
(2)图5填写如图:
(3)图6填写过程如下:(填法不唯一,图3中只要按由小到大,斜角填写均可)填幻方:“将1、2、3、4、5、6、7、8、9这九个数分别填入幻方的9个空格中,使每一横行、每一竖行以及两条对角线上的数的和都是15”.不管你怎么填,中间空格上的数一定是5,你能说明理由吗?(提示:设中间空格上的数是x,考虑含x所在的横行、竖行及对角线的数字之和列出方程)
填幻方:“将1、2、3、4、5、6、7、8、9这九个数分别填入幻方的9个空格中,使每一横行、每一竖行以及两条对角线上的数的和都是15”.不管你怎么填,中间空格上的数一定是5,你能说明理由吗?(提示:设中间空格上的数是x,考虑含x所在的横行、竖行及对角线的数字之和列出方程) 5
不区分大小写匿名
不知道,很抱歉哦
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学习帮助领域专家
当前分类官方群专业解答学科习题,随时随地的答疑辅导读世界海陆分布示意图完成题目要求:(1)填出上图中数字所代表的大洲名称:①北美洲;④欧洲;⑥大洋洲⑦南极洲.我国位于亚洲.(2)将图中字母所代表的大洋的名称填写在下列的空格内.A北冰洋,B大西洋,D印度洋,四大洋中面积最大的是太平洋,呈S形的大洋是大西洋,跨经度最多的大洋是北冰洋,纬度最高的大洋是北冰洋.(3)七大洲中面积最大的是亚洲,同为一个大陆的大洲是亚洲和欧洲.(4)就东西半球来说,陆地主要分布在东半球,就南北半球来说,陆地主要分布在北半球.(5)①⑤大洲的分界线为白令海峡.①②大洲的分界线为巴拿马运河.③⑤大洲的分界线为苏伊士运河.
解:(1)图中数字所代表的大洲名称:①是北美洲;④是欧洲;⑥是大洋洲,⑦是南极洲.我国位于亚洲;(2)A是北冰洋,B是大西洋,D是印度洋,四大洋中面积最大的是太平洋,呈S形的大洋是大西洋,跨经度最多的大洋是北冰洋,纬度最高的大洋是北冰洋;(3)七大洲中面积最大的是亚洲,同为一个大陆的大洲是亚洲和欧洲;(4)就东西半球来说,陆地主要分布在东半球,就南北半球来说,陆地主要分布在北半球;(5)①⑤大洲即北美洲与亚洲的分界线为白令海峡.①②大洲即北美洲与南美洲的分界线为巴拿马运河.③⑤大洲即非洲与亚洲的分界线为苏伊士运河.故答案为:(1)北美洲;欧洲;大洋洲;南极洲;亚;(2)北冰洋;大西洋;印度洋;太平洋;大西洋;北冰洋;北冰洋;(3)亚洲;亚洲;欧洲;(4)东;北;(5)白令海峡;巴拿马运河;苏伊士运河.大陆和它周围的岛屿合起来称为大洲,全球共分为亚洲、欧洲、北美洲、南美洲、非洲、大洋洲和南极洲七个大洲.其中面积最大的大洲是亚洲,面积最小的大洲是大洋洲.地球上的海洋,被陆地穿插分割,形成彼此相连的四个大洋,按面积的大小依次是太平洋、大西洋、印度洋、北冰洋.当前位置:
>>>阅读下面短文,并根据所读内容,在文章后第1-5小题的空格里填入一..
阅读下面短文,并根据所读内容,在文章后第1-5小题的空格里填入一个最恰当的单词。注意:每个空格只填1个单词。
&&&&&Every sport has its great legends: soccer has Pele, basketball has Michael Jordan, and tennis, Steffi Graf. Isthere one athlete who people consider to be the best ever? Many would say that person is boxer Muhammad Ali,known to his many fans as "the greatest".&&& Ali was born in Louisville, Kentucky in 1942. At the age of twelve, after his bike was stolen, young Ali began by the time he reached high school, he was a great amateur(业余) boxer. After winning six state andtwo national boxing championships, he competed in the 1960 Olympic, where he won a gold medal. That sameyear, at the age of eighteen, he became a professional boxer. &&& From the start of his career it was clear that Ali was different from other athletes. He was outspoken, confident, strong-willed and talked publicly about himself and his beliefs (信仰). The man who called himself "the greatest" still faced many challenges, though. After winning his Olympic gold medal, he returned home tothe United States. He was not allowed to stay in certain hotels or eat in certain restaurants because of the colorof his skin. Ali was disgusted (反感) with racism in the U.S., so he threw his Olympic medal into a river. &&& In 1964, Ali beat Sonny Liston to become the world heavyweight champion. Ali surprised the world again in1966, not for his boxing skills, but for his political beliefs. He disagreed with the U.S. war in Vietnam andrefused to join the army, which all young men in the U.S. had to do at the same time. As a result, Ali's heavyweight title was taken away, and he was sent to prison for five years. &&& Ali retired (退休) from boxing in 1981, ending a career of sixty-one fights, of which he won fifty-six. In 1996, he was recognized as a sporting hero at the opening ceremony of the Olympic Games in Atlanta. The crowd at the Game cheered as Ali, now suffering from Parkinson's disease, lit the Olympic flame-no longer thestrongest, but still the greatest.
The Greatest -Muhammad Ali
Personal details
Date of birth:
January 17,1942
(1)&&&&&&&&&&&& &of birth:
Louisville, Kentucky
Characteristics:
outspoken, strong-willed and (2)&&&&&&&&&&&&
Sporting Career
In (3)&&&&&&&&&&& , he started boxing after his bike was stolen. When he was a (4)&&&&&&&&&&&&&&school student , he was a good amateur boxer.In the 1960 Olympics, he won his (5)&&&&&&&&&&&& &gold medal. At the age of 22, he (6)&&&&&&& &&&&& &the world heavyweight champion. In 1981, he (7)&&&&&&&&&&&&&boxing as a professional player.
Other Information:
Racism made Ali feel so (8)&&&&&&&&&&& &that he threw his Olympic medal into a river. He was sent to prison because he didn't (9)&&&&&&&&&&&&&to join the army. In 1996 , he was recognized as a sporting (10)&&&&&&&&&&&&&&&at the opening ceremonyof the Olympic Games in Atlanta.
题型:阅读理解难度:偏难来源:期末题
1. Place& &2. confident&& 3. 1954&& 4. high& &5. first&& 6. became&& 7. stopped&& 8. disgusted& &9. agree& &10. hero
马上分享给同学
据魔方格专家权威分析,试题“阅读下面短文,并根据所读内容,在文章后第1-5小题的空格里填入一..”主要考查你对&&人物传记类阅读&&等考点的理解。关于这些考点的“档案”如下:
现在没空?点击收藏,以后再看。
因为篇幅有限,只列出部分考点,详细请访问。
人物传记类阅读
人物传记类阅读:本类型选材主要是名人轶事。人物传记的叙述线索也常常以时间为序。内容一般不是一个人的生活流水账,而是选取主人公一些重要的人生阶段或生活片段来展开叙述。阅读时要把握主人公在此阶段发生的事对他本身或他人有什么重要的意义和影响。
发现相似题
与“阅读下面短文,并根据所读内容,在文章后第1-5小题的空格里填入一..”考查相似的试题有:
28512429299930239430301428981051609把1,1,2,2,3,3,4,4,填到8个空格里,使两个1之间有一个数,两个2之间有两个数,两个3之间有3个数,两个4之间有4个数,怎样填
把1,1,2,2,3,3,4,4,填到8个空格里,使两个1之间有一个数,两个2之间有两个数,两个3之间有3个数,两个4之间有4个数,怎样填
不区分大小写匿名
考虑两个1间数字为a,则结果中含有1a1设两个2之间有bc,则有2bc2如果上面两个部分不能交叉 则总共占了7个位置bc只能是3 4
不妨设2bc2为 2342 考虑 1a1放在前或者后 分别实验得到
当然把这列数字倒过来一样符合题目要求
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