将军饮马问题

lovelycheung2022-10-04 11:39:541条回答

已提交,审核后显示!提交回复

共1条回复
实力决非偶然 共回答了13个问题 | 采纳率69.2%
很高兴为你解答.
河流为l,将军出发地为A,目的地为B
做A的对称点A',连接A'和B
A'B和l 的交点O就是将军饮马的最佳地点,
为什么这是最短路程呢?
我们知道,两点之间,线段最短.
因为l是AA’的垂直平分线,则AO=A'O.
也就是说,A'和B的最短路程其实就是等于AO+BO.
那么将军的路线就是AO----BO.
1年前

相关推荐

Here is a story told about an American general(将军)who was a
Here is a story told about an American general(将军)who was a very important figure in the American army(军队)during the First World War(战争).Everybody in the United States knew him and many people wished to have a picture or something of his in their homes.
Soon after the war the general returned to Washington.One day he went to a dentist and asking him to pull his six teeth.A week later his teeth were being sold in curiosity(古玩)shops at $5 each.On each of the teeth there was a label(标签)with the name of the general and words:”Buy these teeth and show them to your friends at home”.The general got angry.He rushed to his office and ordered(命令)six offices to go around the city and buy all his teeth.
The officers went out and visited every curiosity shop in the capital.They were away from the office all day.In the evening they return and put on the table in front of the general the teeth they had bought.They had collected 175 teeth.
根据短文内容,选择正确答案,并将其代号填入左边的括号内.
( )1.What does the word “figure” mean?
A.人物 B.数字 C.雕塑 D.图画
( )2.What did many people wish to do?
A.x05They wished to be the general’s friend.
B.x05They wished to send a picture to the general.
C.They wished to have a picture or something of the general’s in their homes.
D.x05They wished to invite the general to their homes.
( )3.Whose teeth were pulled out?
A.The dentist’s B.The officer’s C.Maybe people’s D.The general’s
( )4.Why was the general angry?
A.x05Because the dentists pulled his teeth out
B.x05 Because the dentists lost his teeth.
C.Because his teeth were being sold in a curiosity shop.
D.Because the officers bought his teeth.
( )5.Which of the following is right?
A.x05The general had 175 teeth .
B.x05The story happened after the First World War.
C.The officers visited the general after he returned to Washington.
C.x05Each of the 175 teeth was sold at $5.
爱MM1年前2
blackwhite138 共回答了22个问题 | 采纳率90.9%
ACDCB 放心肯定全对的,孩子好好学习吧 下次自己做
Here is a story told about an American general(将军)who was a
Here is a story told about an American general(将军)who was a very important figure in the American army(军队)during the First World War(战争).Everybody in the United States knew him and many people wished to have a picture or something of his in their homes.
Soon after the war the general returned to Washington.One day he went to a dentist and asking him to pull his six teeth.A week later his teeth were being sold in curiosity(古玩)shops at $5 each.On each of the teeth there was a label(标签)with the name of the general and words:”Buy these teeth and show them to your friends at home”.The general got angry.He rushed to his office and ordered(命令)six offices to go around the city and buy all his teeth.
The officers went out and visited every curiosity shop in the capital.They were away from the office all day.In the evening they return and put on the table in front of the general the teeth they had bought.They had collected 175 teeth.
根据短文内容,选择正确答案,并将其代号填入左边的括号内.
( )1.What does the word “figure” mean?
A.人物 B.数字 C.雕塑 D.图画
( )2.What did many people wish to do?
A.x05They wished to be the general’s friend.
B.x05They wished to send a picture to the general.
C.They wished to have a picture or something of the general’s in their homes.
D.x05They wished to invite the general to their homes.
( )3.Whose teeth were pulled out?
A.The dentist’s B.The officer’s C.Maybe people’s D.The general’s
( )4.Why was the general angry?
A.x05Because the dentists pulled his teeth out
B.x05 Because the dentists lost his teeth.
C.Because his teeth were being sold in a curiosity shop.
D.Because the officers bought his teeth.
( )5.Which of the following is right?
A.x05The general had 175 teeth .
B.x05The story happened after the First World War.
C.The officers visited the general after he returned to Washington.
C.x05Each of the 175 teeth was sold at $5.
汤圆枯黄1年前1
該影 共回答了21个问题 | 采纳率81%
1.A important figure 重要人物
2.C Everybody in the United States knew him and many people wished to have a picture or something of his in their homes.
3.D One day he went to a dentist4.C
5.B
英语翻译Here is a story told an American general (将军) who was a
英语翻译
Here is a story told an American general (将军) who was a very important figure in the American army during the First World War.Everybody in the Untied States knew him and many people wished to have a picture or something of his in their homes.
篮鱼飞1年前2
feiwei1983 共回答了25个问题 | 采纳率84%
这个故事讲得是一位美国的将军,他是一战期间美军中很重要的一个人物,所有的美国人都知道他,一些人希望得到他的照片或是他家的东西.
翻译:将军要求立刻完成任务(demand)
管吃的LULUTU1年前4
runnnn 共回答了18个问题 | 采纳率88.9%
the General demanded finish tha task at once
翻译One day a great general (将军) asked his soldiers, "Wha
翻译One day a great general (将军) asked his soldiers, "What's the strongest power i
翻译One day a great general (将军) asked his soldiers, "What's the strongest power in the world?
刷新器1年前1
a-cloud 共回答了15个问题 | 采纳率100%
一天,一个将军问他的士兵:"世界上最强大的力量是什么?”