第一篇：初二上册寒假生活指导数学答案
初二上册寒假生活指导数学答案
练习一: C C A C C B D B 30，3或 4 4和6 16：25：08 80 5 2号
练习二: A C D C C B 4，等边三角形 8 2 10 5 60° 110°
练习三: C B D C C A B B ⑷⑹⑺ ⑴⑵⑶⑸ ±2/3 0.6 9.75×105或√7 直角 10 练习四：
B C D D D A D B-1/2 ±3-√5 √3-√2 2.03 1003 5;8 15(√就是根号。)练习五: C B C D D C C C C 90
一、口、王、田 经过□ABCD的对角线交点 AC=BD 且AC⊥BD 22cm与20cm 6 3 45° 8
练习六: B C A B D A C D 线段、平行四边形、正方形、园 线段、角、正方形、等腰梯形、圆、等边三角形 线段、正方形、圆 90 AB=CD 80 2 28 练习七：
B C A A A A 有序实数对 13 3(-3，-1)=3 ≠-2(1，2)(1，-3)(-3，-7)练习八: B C A C B C(3，0)(0，1)(-6/7，9/7)y=x+3 s=264-24t-2-1 y=x-3 y=1/3x-1/3 5 8 240 练习九: C B B D C C-1 9/2 y=3x+5 14 3 3 三 y=-x-1 一、二、四 减小 x y 8 x=2，y=7(自己用大括号)5 120 15 练习十：
A D D B 95 203 101 8 8.1 9 9 3m+7 3n+7 练习十一: A D B B C D C B 2-2 3 25/8 4(4，-3)y=-5/2x x=-1，y=2(自己用大括号)9 ±6 4
上文就是给您带来的初二上册寒假生活指导数学答案，希望大家及时注意并了解相关动态！!
第二篇：初二上学期寒假生活指导数学答案
初二上学期寒假生活指导数学答案
选择题
1.下列四个说法中，正确的是()A.一元二次方程 有实数根;B.一元二次方程 有实数根;C.一元二次方程 有实数根;D.一元二次方程x2+4x+5=a(a≥1)有实数根.答案D 2.一元二次方程 有两个不相等的实数根，则 满足的条件是
A.=0 B.gt;0 C.lt;0 D.≥0
答案B 3.(2010四川眉山)已知方程 的两个解分别为、，则 的值为
A.B.C.7 D.3 答案D 4.(2010浙江杭州)方程 x2 + x – 1 = 0的一个根是 A.1 – B.C.–1+ D.答案D 5.(2010年上海)已知一元二次方程 x2 + x ─ 1 = 0，下列判断正确的是()A.该方程有两个相等的实数根 B.该方程有两个不相等的实数根
C.该方程无实数根 D.该方程根的情况不确定
答案B 6.(2010湖北武汉)若 是方程 =4的两根，则 的值是()A.8 B.4 C.2 D.0 答案D 7.(2010山东潍坊)关于x的一元二次方程x2-6x+2k=0有两个不相等的实数根，则实数k的取值范围是().A.k≤ B.klt;C.k≥ D.kgt;
答案B 8.(2010云南楚雄)一元二次方程x2-4=0的解是()A.x1=2，x2=-2 B.x=-2 C.x=2 D.x1=2，x2=0 答案A 上文就是给您带来的初二上学期寒假生活指导数学答案，希望大家及时注意并了解相关动态！!
第三篇：2018年七年级上册寒假生活指导答案：数学
2018年七年级上册寒假生活指导答案：数学
寒假即将要到来了，各位学生们是不是也在为寒假作业发愁呢。下面是小编为大家整理的一篇七年级上册寒假生活指导答案：数学，希望对大家有所帮助!
解答题(共90分)
15.计算下列各式(本题共2小题，每小题8分，共计16分)(1)(2)
16.先化简再求值(8分)，其中，17.解方程组(本题共2小题，每小题8分，共计16分)
18.某生态示范园要对1号、2号、3号、4号四个品种共500株果树幼苗进行成活实验，从中选出成活率高的品种进行推广，通过实验得知，3号果树幼苗成活率为89.6%，把实验数据绘制成下列两幅统计图(部分信息未给出).4号25% 2号
3号25%
图1 图2
(1)实验所用的2号果树幼苗的数量是 株;
(2)请求出3号果树幼苗的成活数，并把图2的统计图补充完整;
(3)你认为应选哪一种品种进行推广?请通过计算说明理由.(8分)
19.小王家购买了一套经济适用房，他家准备将地面铺上地砖，地面结构如图所示.根据图中的数据(单位：m)，解答下列问题：
(1)写出用含、的代数式表示地面总面积;
(2)已知客厅面积比卫生间面积多21m2，且地面总面积是卫生间面积的15倍，铺1m2地砖的平均费用为80元，求铺地砖的总费用为多少元?(10分)
20.如图所示，已知O为AD上一点，∠AOC与∠AOB互补，OM、ON分别是∠AOC、∠AOB的平分线，若
∠MON=40°，试求∠AOC与∠AOB的度数.(10分)
21.已知，如图，B，C两点把线段AD分成2∶5∶3三部分，M为AD的中点，BM=6cm，求CM和AD的长.(10分)
22.据电力部门统计，每天8：00至21：00是用电的高峰期，简称“峰时”，21：00至次日8：00是用电的低谷时期，简称“谷时”，为了缓解供电需求紧张矛盾，某市电力部门于本月初统一换装“峰谷分时”电表，对用电实行“峰谷分时电价”新政策，具体见下表：
时间 换表前 换表后
峰时(8：00~21：00)谷时(21：00~次日8：00)
电价 每度0.52元 每度0.55元 每度0.30元
(1)小张家上月“峰时”用电50度，“谷时”用电20度，若上月初换表，则相对于换表前小张家的电费是增多了还是减少了?增多或减少了多少元?请说明理由.(2)小张家这个月用电95度，经测算比换表前使用95度电节省了5.9元，问小张家这个月使用“峰时电”和“谷时电”分别是多少度?(12分)解答题
15.(1)(2)= …4分 = ……4分
= ……6分 = ……6分
= ……8分 =0 ……8分
16.(1)
= ……3分
因为，所以 ……6分
故 ……8分17.(1)(2)
解：由②得 ③ ……2分 解：由②得 ③ ………2分
③-①得 ③-①得 ………4分
……4分 将 代入①得 ………6分将 代入③得 ……6分
所以原方程组的解为 ……8分 所以原方程组的解为 ……8分
18.(1)100 ……1分
(2)500×25%×89.6%=112(株)……2分
统计图如图所示： ……4分
(3)1号果树幼苗成活率为 2号果树幼苗成活率为
4号果树幼苗成活率为
因为93.6%89.6%85%
所以应选择4号品种进行推广 ……8分
19.(1)地面总面积为： m2 ……………3分
(2)由题意，得 解得
……………6分
所以地面总面积为(m2)……………8分
因为铺1 m2地砖的平均费用为80元，所以铺地砖的总费用为：45×80=3600(元)…………10分
上文就是查字典数学网给您带来的七年级上册寒假生活指导答案：数学，希望大家及时注意并了解相关动态！!
第四篇：初一上册寒假生活指导答案
I.听力部分(每题1分，满分20分)A）听对话选择正确的图片。（听两遍）1.Where does Jack come from? A.B.C.2.Where is the dog? A.B.C.3.Where does the woman chat with his mother? A.B.C.4.What is Madee doing now? A.B.C.B）听对话回答下列问题，选择正确答案。（听两遍）5.When is Daniel going to help Helen with her English?
A.This morning.B.This evening.C.Tomorrow morning.6.Where are they?
A.In the shop.B.At home.C.In the restaurant.7.Why does Mike like winter best?
A.Because he likes snow.B.Because he enjoys skating.C.Because he enjoys swimming.8.How many students are there in Class One?
A.Twenty-three.B.Forty-three.C.Forty-one 9.How often does Millie hear from her Australian friend? A.Once a week.B.Once a month.C.Twice a month.C)听对话回答下列问题
听第一段对话，回答第10-12小题．
l0.Which season does the man like best?
A.Spring.B.Winter.C.Summer.11.When does the summer holiday finish?
A.In July.B.In August.C.In September.12.What does the man like to do in summer?
A.Go shopping with his uncle.B.Swim with his uncle.C.Play with his uncle.听第二段对话，回答13-15小题
13.What does the man want to buy? A.Eggs.B.Apples.C.Bananas.14.How much is the lantern?
A.23 yuan.B.22 yuan.C.32 yuan..15.Are there any bookshops in this shopping mall? A.Yes, there is one.B.No, there aren‟t.C.Yes, there is some.听短文，回答第16-20小题。16.Joan is from ________.A.China B.Japan C.the USA 17.Joan likes speaking ________with us after class.A.Chinese B.English C.Japanese 18.Joan's ________ is an English teacher.A.father B.mother C.father‟s brother 19.How often does Joan go to the shop?
A.Often.B.Every Sunday.C.Sometimes.20.How many people are there in Joan‟s family? A.Four.B.There.C.Two.Ⅱ.单项选择（从四个选项中找出最佳答案 每题1分，满分20分）21.My favourite pet is _____cat.______fur is grey and white.A.a...Its B.the....its C.the...It‟s D.a...A
22.---does Mary usually go to the buddy club?---Once a week.A.How often B.How long C.How far D.How much
23.The boy always looks.Now he‟s looking at his new drawing.A.happy;happily B.happy;happy C.happily;happily D.happily;happy 24.What‟s your best friend like? A.He is fine.Thank you.B.He looks like a doctor.C.He likes making friends.D.He is helpful and generous.25.Chinese students have weeks in the summertime than American students.A.more;on B.fewer;on C.more;off D.less;off 26.There an exciting softball match on TV this evening.A.will have B.are going to have C.are going to be D.is going to be 27.There are many tall buildings on of the busy street.A.both side B.all sides C.each side D.every side 28.I have friends than you, but I have true friends than you.A.more;more B.less;more C.fewer;more D.more;less 29.If you live near the shopping mall, you go far to buy things.A.have to B.haven‟t to C.don‟t have to D.needn‟t to
30._______ Tim‟s help, I found my pet dog in the end.I should say thanks to him.A.Along with B.Without C.Thanks to D.Because
31.Only two of the students worked the maths problem out correctly.______ all did it wrong.A.Other B.Others C.The other D.The others
32.---David, your mother‟s birthday is _____.Let‟s think about how to celebrate it.---OK, Dad.A.coming up B.picking up C.closing down D.looking up
33.---Because the petrol(汽油)price is going up , ________people will choose to own a car, I think.---I have the same idea as you.A.more and more B.fewer and fewer C.less and less D.less and fewer 34.There few great changes in our city 10 years ago.A.were B.had C.was D.are
35.---Why didn‟t you arrive there until three days later?
---Because the heavy rain added to_____ of the journey(旅程）.A.the difficulties B.more difficult C.the most difficult D.the difficult 36.---How was your interview(采访)last Monday?---____.A.Not at all B.It was OK C.That‟s right D.Good luck
37.---You don‟t like rock music, do you?---_________.I think it is too noisy.A.Yes, I do B.No, I don‟t C.Yes, I don‟t D.No, I do 38.Lucy is _______ of the twins.A.slimmer B.slimmest C.the slimmer D.the slimmest 39.Vivien has a good sense of humour.She is very good _______telling jokes.A.to B.for C.in D.at
40.The 2012 American action film „The Expendables 2‟makes me ______great.A.felt B.feel C.feeling D.to feel
三、完形填空（共15小题；每小题1分，满分15分）
From Monday to Friday most people are busy working or studying, but in the evenings and at weekends they are free and like to __41__ themselves.Some watch television or go to the cinema, others __42__ sports.This is decided by their own __43__.There are many different ways to spend our __44__ time.Almost everyone has some kind of __45__: it may be something from collecting stamps to __46__ model planes.Some hobbies are very __47__, but others don‟t cost anything at all.Some collections are worth(值)__48__ of money, others are valuable（有价值的）only to their owners.I know a man has a coin collection.It is worth several dollars.A short time ago he bought a rare(罕见的)fifty-cent piece.It __49__ him $250!He was very happy about this collection and thought the price was all right.On the other hand, my youngest brother collects match boxes.He has almost 600 of them, but I want to know__50 __ they are worth any money.However, __51__ my brother they are quite valuable.__52__ makes him __53__ than to find a new watch box for his collection.That‟s what a hobby means, I think.It is something we 54 to do in our free time just for the 55 of it.The value in dollars is not important, but the pleasure it gives us is.41.A.love B.work C.enjoy D.play
42.A.look like B.take care of C.think about D.take part in 43.A.lives B.interests C.jobs D.things 44.A.working B.free C.own D.whole 45.A.hobby B.thing C.makes D.way 46.A.sending B.making C.eating D.looking 47.A.interesting B.exciting C.cheap D.expensive 48.A.a little B.a few C.a lot D.a number 49.A.paid B.cost C.took D.spent 50.A.that B.if C.what D.in 51.A.to B.on C.with D.in 52.A.Everything B.Anything C.Nothing D.Something 53.A.happier B.worse C.more happily D.happiness 54.A.have B.need C.refuse D.like 55.A.money B.work C.fun D.time
四、阅读理解（共15小题；A篇每题2分，B、C篇每题1分，共20分）
A
John is 14 years old.He is a student of Grade Eight.He was a very active and happy boy two years ago.But everything changed after he started to play computer games.He never plays basketball or football with his friends any more.And when he sits in the classroom, he can‟t listen to the teachers.He sleeps in class.And he spends less and less time in studying.So he gets bad scores in tests.But he is very different after school is over.He stays in the net bar until it is closed.Ah, he loses himself in computer games.His parents can do nothing to stop him.Every morning in the school, when we see that he is so tired after a night‟s “busy working”, we really feel sad.He is too tired!
56.John was ______two years ago.A.sad and unhealthy B.active but bored C.active and happy D.healthy but sad 57.John changed a lot because ________.A.he couldn‟t get good grades B.he played computer games C.he had to work for money D.he didn‟t exercise any more 58.Every morning John feels ________.A.tired B.healthy C.happy D.relaxed 59.John _______ plays basketball with his friends now.A.seldom B.often C.always D.never 60.Which of the following is TRUE?
A.John wasn‟t a good student two years ago.B.John often sleeps in class at school.C.John‟s parents don‟t love him.D.John is busy working every day.B
China Youth says that more and more girl students have come into colleges(大学)to study in the recent few years.As we know, once the number of boys was larger than that of girls and boys did much better than girls in our country for a long time.Now, things have changed a lot.In recent years, the proportion of girl students is growing fast.In 1998, about 39.7% of college students were girls.In 2000, it was 41.07% and in 2001, the number was 42.14%.There are several reasons for this.Firstly, there is little difference between boys and girls in their intelligence(智力).That‟s to say, girls are as clever as boys.And boys have more interests than girls, so they may not always do well in their study.Secondly, girls are more careful than boys.They work harder at school and they do better in all exams.Another reason is that with the development of society, people pay more and more attention(注意力)to girls‟ education.61.China Youth says that more and more ______.A.boys are clever than girls B.boys can‟t go to school
C.girls have come into colleges D.girls begin to study at school 62.42.14% refers to(指)the number of ______.A.girls at schools in 1998 B.girls in colleges in 200
1C.boys at schools in 2001 D.boys in colleges in 1998 63.The writer gave us ______ reasons to explain the question.A.two B.three C.four D.five
64.What does the underlined word “proportion” mean in Chinese?
A.成绩 B.比例 C.特性 D.速度 65.Which of the following sentences is TRUE?
A.Boys may not do well in their study as girls because they don‟t like studying.B.Boys are much cleverer than girls because they‟re interested in many things.C.Girls‟ intelligence is the same as boys‟.D.Girls study harder, but they couldn‟t get higher marks than boys.C
There are about fifteen hundred languages in the world.But only a few of them are very important.English is one of them.Many, many people use it, not only in England and the USA, but also in other parts of the world.About 200,000,000 people speak it as their own language.It is difficult to say how many people are learning it as a foreign language.Many millions of people are trying to do so.Is it easy or difficult to learn English? Different people may have different answers.Have you ever noticed advertisements of this kind in the newspapers or magazines? “Learn English in six weeks, or give your money back…” “Easy and funny…” “Our records and tapes help you master English in a month”.Of course, it never happened quite like that.The only language that seems easy to learn is the mother tongue.We should remember that we all learned our own language well when we were children.If we could learn English in the same way, it would not seem so difficult.Think of what a small child does.He listens to what people say.He tries what he hears.So it is hard to say that learning English is easy.We must do a lot of practice.And practice needs great efforts and takes much time.Good teachers, record, tapes, books, and dictionaries will be helpful, but they cannot do the student‟s work for him.66.How many languages are very important in the world?
A.A few.B.Few.C.About 1500.D.Many.67.If we want to learn English well, what shall we do?
A.We should study it without any help.B.We must do a lot of practice.C.We need to get much money back.D.We must live in England or America.68.How does the writer like the advertisements in the newspapers or magazines? A.He thinks the advertisements very expensive.B.He thinks the advertisements are true.C.It never happened quite like what the advertisements said.D.He believes” Learn English in six weeks, or give your money back”.69.Which language is easy to learn?
A.English B.Chinese C.Japanese D.The mother language 70.Which countries use English as the mother tongue? A.China and France.B.Japan and Italy.c.England the America.D.Germany and France.第II卷(75分)
一、选择正确的词组完成下列句子。(每题1分，满分7分)
the fastest runner becomes famous make friends with as much as as well the same as the most points is ready to 1.I really want to ______________ my new classmates at the new school.2.Do you miss me _________I miss you?
3.The 25-year-old Bolt is _____________in the 100 metres.4.Mo Yan __________ all over the world after receiving 2012 Nobel Prize in Literature.5.During the Reading Week, I want to read all our classmates‟ books_________.6.Ninth grade in the USA is __________Grade 9 in China.7.I hope you will score ____________ in the English exam in your class.二、根据句子意思，用括号中所给单词的适当形式填空。(每题1分，满分12分)1.Tom‟s father is teaching his parrot ____________(speak)in the house.2.We should not__________(study)for the study in word.3.Simon has __________(little)orange juice than Millie.4.Do you often practice___________(ski)here in winter?
5.Peter from Australia is the___________(tall)of the six foreign teachers.6.Many teenagers are willing to ________(give)their seats to people in need on bus.7.We always have a good time_______(talk)to each other at lunch time at school 8.Happiness is sometimes just staying in your bed, eating pizza and _______(watch)television all day.9.Many _______(hero)in the history books have secrets.10.But to his dying day, he could never solve the problem______(correct).11.Betty wants to be a _______(sing)like his mother when she grows up.12.The new student hopes I can give him some ___________(advice).三、根据汉语提示完成下列各句（每题最少两词,每题2分，满分16分）1.这个女孩总是带着微笑，看上去很开心。
The girl always __________________and looks happy.2.我听说吴先生今晚将要上电视。I hear Mr.Wu is going to___________ tonight.3.我爸爸正在学如何做健康美味的饭菜。
My father is learning ____________healthy and tasty meals.4.今年我们学的科目比他们学的少。
We study________________ than they do this year.5.放学后我常和我的伙伴们打一小时篮球。
I often spend one hour _______________with my buddies after school.6.在午餐时间，他总是独自坐着读着书。
During lunchtime, he always _______________and reads books.7.戴眼镜的漂亮女孩是美国歌手、舞者、演员布兰妮。
The beautiful girl _______________is the American singer, dancer and actress Britney.8.他视力不好是因为夜晚在电脑上工作太多。
He has poor eyesight ___________working on the computer too much at night.四、.阅读短文（共2篇；每小题2分，满分20分）A
One afternoon, Mr.Dickens went out for a walk at the side of a river.He saw a fisherman on the bank of the river.So he stopped to watch him quietly.After a few minutes, the fisherman pulled his line in.There was a
big, fat fish at the end of it.The fisherman took it off the hook(鱼钩)and threw it back into the water.Then he put his hook and line in again.After a few more minutes he caught another big fish.Again he threw it back into the river.Then, the third time, he caught a small fish.He put it into his basket and started to get ready to go home.Mr.Dickens was very surprised, so he spoke to the fisherman.He said, “Why did you throw those beautiful, big fish back into the water, and keep only that small one?” The fisherman looked at Mr.Dickens and answered, “My pan is too small!” 根据文章内容回答下列问题。
1.Why did Mr.Dickens stop walking?
2.For the first time, what did the fisherman catch?
3.Did the fisherman put the first and the second fish back into the river? 4.Is the third fish bigger than the other two? 5.How was Mr.Dickens at what he saw? B
Do you know how many families in the US and Canada have pets? If you say 60%, you‟re right!Sixty percent of families have at least one pet there.What about the most popular types of pets? Does anyone know what the most popular pets are? Dogs are very popular.In fact, dogs and cats are the two most popular types of pets.Other popular pets are birds and fish.Some people have dogs, cats, birds and fish!
Do you know how pets help their owners? You probably know that people help their pets.They feed them and take care of them.But do you know that pets help their owners? Pets help their owners to feel good.People without any pets often feel lonely, especially older people.Pets can also help people‟s health.It‟s true!People with pets are healthier than people without pets.People in the United States and Canada love their pets like members of their own family.Many people let their pets sleep in their beds.And sometimes pet owners carry a picture of their pets with them.根据文章内容完成下列各句。
6._____________of families have at least one pet in the US and Canada.7.The two most popular types of pets are __________________ there.8.Pets help their owners to feel good and they can also help _________________.9.It‟s a good idea for older people __________________if they don‟t want to feel lonely..10.People in the western counties treat their pets as ______________their own family.五、书面表达（20分）
请以“My best teacher”为题，写一篇短文，来表达你对老师的感谢和喜爱。要点如下：
1.简单介绍老师的基本情况（包括性别、年龄、外貌）。
2.说明你喜欢老师的一个或两个原因，是老师的人格魅力如幽默风趣知识渊博；是老师的 精彩有趣的课堂教学；还是老师对你无微不至的关心等等，原因不限定但合情理。3.真情表述你对老师的感谢，喜爱和祝福等。
全文约80个字左右，段落分明，条理清晰，可以采用老师的真实姓名。
第五篇：六年级上册寒假生活指导答案[定稿]
六年级上册寒假生活指导答案
2012 年小学六年级语文寒假生活指导答案（人教版）
一、巧用反义词填补词语。（内）（外）交困别有（出）（入）（上）行（下）效出（生）入（死）
二、填空。例：（衣）（冠）楚楚（）（死气）沉沉
三、辨“然”填空毫不犹豫用（断）然非常明显用（显）然
四、在括号里填上文学家的真实姓名青莲居士（李白）香山居士（白居易）六一居士（欧阳修）易安 居士（李清照）东坡居士（苏轼）
五、搬动部件组新字。例：吟—（含）叶-（古）加-（另）朵-（机）
六、猜谜语五四三二一（打一数学用语）——倒数
七、写上有关的历史人物负荆请罪（廉颇、蔺相如）投笔从戎（班超）约法三章（刘邦）完璧归赵（蔺 相如）闻鸡起舞（祖逖、刘琨）
八、改病句《中国少年报》和《儿童文学报》这两种报纸我都爱看。
九、猜谜语，打一字（每组有两个谜面，两个谜面的谜底都一样）
1、①雨天没有阴天有，田里没有湖 里有，河水没有潮水有。②您说此字不难猜，成双便是好伴侣。——月
2、①雨天没有晴天有，田里没有 堤上有，云南没有贵阳有。——日②你谜我谜若成双，到处一片亮堂堂。
十、意大利东北部城市，亚得里亚海威尼斯湾西北岸重要港口。人口34.3 万。主建于离岸4 公里的海 边浅水滩上，平均水深1．5 米。由铁路、公路桥与陆地相连。由118 个小岛组成，并以177 条水道、401 座桥梁联成一体，以舟相通，有“水上都市”之称。
十一、形容房子依然很好，这个“很好”换成别的
词（能写在作业本上的好词）完好对于房子来说，除了年久失修，还有什么变得破败不堪的原因？被风吹到了，或被耗子咬了
十三、猜一字听有，看无；古有，今无；叶有，花无；跳有，走无；高有，低无；后有，前无；凉有，热无；哭有，笑无；哑有，聋无。——口
十四、解释下列词语缥缈：隐隐约约，若有若无的样子。形容空虚渺茫。一般指心中想要而现实不可 得的东西，并非指虚无不存在的东西。弥漫：充满；到处都是
十五、发上来几条歇后语阿婆留胡子——反常阿庆嫂倒茶——滴水不漏；点滴不漏挨鞭子不挨棍子— —吃软不吃硬挨打的狗去咬鸡——拿别人出气挨打的乌龟——缩脖子啦挨刀的鸭子——乱窜挨了巴掌赔不 是——奴颜媚骨挨了棒的狗——气急败坏挨了打的鸭子——乱窜
十六、写几个“马”开头的词语马浡牛溲 马不解鞍马不停蹄马尘不及马迟枚疾马齿徒长。
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