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安徽省六校2019届高三第一次联考

安徽省六校2019届高三第一次联考
安徽省六校2019届高三第一次联考

安徽省六校2019届高三第一次联考

英语

第一部分听力(共两节,满分30 分)

第一节

听下面5 段对话。每段对话后有一个小题,从题中所给的A、B、C 三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10 秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。

1. How much will the man pay for the four tickets?

A. 15 pounds.

B. 30 pounds.

C. 45 pounds.

2. Why is the man late according to his words?

A. He knocked down an old man.

B. He sent an old man to a hospital.

C. His bike was broken on the way.

3. What's the date today?

A. 16th.

B. 17th.

C. 18th.

4. Where does the conversation most probably take place?

A. At a bookshop.

B. At a bank.

C. At a restaurant.

5. What is the woman's attitude to the dishes?

A. She thinks it is just so-so.

B. She dislikes it.

C. She likes it very much.

第二节

听下面5 段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C 三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各个小题,每小题5 秒钟;听完后,各小题给出5 秒钟的作答时间。每段对话或独白读两遍。

听第 6 段材料,回答第6、7 题。

6. What is James' hobby?

A. Collecting matchboxes.

B. Collecting envelopes.

C. Collecting coins.

7. How old was James when he got the match boxes as a gift from his father?

A.16.

B.15.

C.14.

听第7 段材料,回答第8、9 题。

8. What is the job of the man?

A. A guide.

B. An engineer.

C. A teacher.

9. What is the man's advantage in English?

A. Speaking.

B. Listening.

C. Reading.

听第8 段材料,回答第10 至12 题。

10. How many English words has the man grasped according to himself?

A. Almost 500.

B. Almost 5,000.

C. Almost 5,500.

11. What did Joe do last night?

A. He saw a film.

B. He worked for a design.

C. He had a meeting.

12. Why will Joe catch the first bus?

A. Because he will meet an important customer.

B. Because he will take part in an interview.

C. Because he will be the first to arrive at the company.

听第9 段材料,回答第13 至16 题。

13. What does the woman prepare for the man?

A. Boiled eggs.

B. Fried eggs.

C. Cakes.

14. What does the man want to do?

A. To exchange for some cash.

B. To put aside some money.

C. To lend some money.

15. Which is better in cashing a traveler's check according to the woman?

A. A stocking center.

B. A hotel.

C. A bank.

16. Which of the following needn't the man offer to the woman?

A. Address.

B. Passport number.

C. ID card.

听第10 段材料,回答第17 至20 题。

17. What is the age of Miss Bao?

A. In her 20s.

B. In her 30s.

C. In her 40s.

18. How much can Miss Bao earn one month in her company?

A. $1,450.

B. $1,415.

C. $1,410.

19. Which is China's largest C to C (customer to customer) website?

A. https://www.wendangku.net/doc/b98141590.html,.

https://www.wendangku.net/doc/b98141590.html,.

https://www.wendangku.net/doc/b98141590.html,.

20. What is the main idea of the passage?

A. Buy it online, a whole new way of shopping!

B. Buy it on TV, a whole new way of shopping!

C. Buy it on a magazine, a whole new way of shopping!

第二部分阅读理解(共两节,满分40 分)

第一节(共15 小题;每小题2 分,满分30 分)

阅读下列短文,从每题所给的四个选项(A 、B 、C 和D )中,选出最佳选项,并在题卡上将该项涂黑。

A

Whether you want to spend your new year in a nearby attraction or a distant one, there are plenty of wonderful places for you to lead in 2019.

Nashville, Tennessee

Music City knows how to throw a festive party at any time of year, but over New Year's Eve you can enjoy the annual Jack Daniel's Music City Midnight concert, offering a free show to the public to count down to the new year as a music note drops. In Nashville, the average flight price for January has been under $300 and the average price for a hotel has been under $250.

Laguna Beach, California

If your ideal destination involves sand, surfing, diving or sailing, slip away to Laguna Beach. During New Year's week you can make a bargain at high-end hotels. At Casa Laguna Hotel & Spa you can take advantage of charge-tree beach chairs and breakfast as well as a heated swimming pool. For a more cost-effective stay, consider checking into Laguna Beach Lodge.

Honolulu

New Year's Eve in Honolulu offers a winning combination of festive beachfront fireworks displays and family-friendly amusements. "There are multiple fun activities specially designed for families with kids of all ages that's what makes it well-known," says Carrie Peters, travel editor at https://www.wendangku.net/doc/b98141590.html,. Hotel deal site https://www.wendangku.net/doc/b98141590.html, shows rooms for under $200 per night for stays from Dec. 30 to Jan. 3, 2019.

Portland, Oregon

For an undisturbed New Year, consider Portland, for the simple reason that you can walk anywhere without being bothered. Plus, you can stay in five-star accommodations without getting your wallet flat. https://www.wendangku.net/doc/b98141590.html, currently shows nightly rates at the Heathman Hotel, a four-and-a-half-star hotel, at $162 for stay~ between Dec. 30 and Jan. 3, 2019.

21. Which of the following is famous for music?

A. Nashville.

B. Laguna Beach.

C. Honolulu.

D. Portland.

22. Laguna Beach is suitable for those

A. who are good at bargaining

B. who are lacking in money

C. who want to kill their time

D. who are fond of water sports

23. What does Honolulu specially offer this year?

A. Festival fireworks.

B. Family-based activities.

C. Special theme parks.

D. Selected exhibitions.

B

An Indian barber has Come up with a novel technique to give people haircut: using just a small comb and a burning candle instead of a pair of scissors, Just like any barber, Dasharath Kumar, 28, combs the hair and meticulously runs the flame of the candle on the ends, giving it a unique finish. The 'cutting-edge' technique has made him the most demanded barber in his small village in Gulbarga in Karnataka in southern India.

While Dasharath joined his family business when he was 15, the unique idea only clicked him five years ago. He says: "Electricity cut was common in our village and .we were, used to working.in dark. But one evening while I was cutting the hair of a customer, power went off and I had to use the light from a candle to finish the haircut. But the flames of the candle that night inspired me to think of using a new technique for trimming(修剪) hair."

"I had bunch of regular customers so when I told them about the experiment, they happily said they trusted me and my skills and gave a nod for the new technique. Surprisingly, it came out very well. Since then there was no looking back."

Started with only 20 pence, customers now happily pay him £1 for his novel way of haircut. One of his daring customers Yusuf Khan, who waited for nearly two hours for his turn, said: "Every barber gives a haircut using scissors but the fun of getting a haircut with a candle flame is unbeatable. Initially, I was not prepared for it but once I saw the magic of his hands, I never went back to a regular barber."

24. The best title for the passage is probably ______.

A. An amazing Indian barber

B. A latest cutting fashion

C. A regular barber's future

D. What made a good barber

25. The underlined word "meticulously" probably means______.

A. casually

B. carefully

C. freely

D. randomly

26. When was Dasharath inspired to trim hair with a burning candle?

A. At the age of five.

B. After his graduation.

C. After a power failure.

D. When it's getting dark.

27. What can we conclude from the text?

A. No customers want to be back to Dasharath's salon.

B. Dasharath charges more money than any other barber,

C. A traditional barber can't make a living in the future.

D. Many people are attracted by Dasharath's technique.

C

Parents Of pupils at Greasley Beauvale primary school, in Newthorpe, Notts, are marked from A to D based on their involvement with their children's education. "The system is intended to improve the children's performance at school by encouraging their parents to attend events, such as parents' evenings and plays, and help with learning at home.”

It has been in place since 2011 and has become public knowledge these days thanks to a report from Office for Standards in Education(Ofsted) earlier this month. "Children of parents in groups A and B make significantly better progress than those whose parents are in groups C and D, but that the system ensures less-engaged parents are productively supported by the School," wrote Sir Michael Wilshaw, head of Ofsted, assessing Nottinghamshire schools in his final annual report.

Then how do parents feel about being graded? "It makes my day! Telling a parent what the influence their lack of engagement is having on the life chances of their child is not easy," said Pat Walker, 63, whose eight-year-old granddaughter attends the school.

"It's absolutely ridiculous. Those parents who work nine to five won't have time to have as much input as, say, stay-at-home mums who have the time to contribute-more and go to more school events," said a mother-of-one.

Another mother said: "I try not to take notice of it, but it really angers me that the teachers are just sitting in the room judging us all and giving us marks. It's one thing when your Child gets a bad grade, but now they openly embarrass us parents too. What on earth are teachers for? It is their job, not ours!"

28. The system mainly aims to ______.

A. assess parents' involvement in education

B. improve students' performance at school

C. get more parents to help build the school

D. test the school's unique teaching methods

29. It can be inferred from the text that

A. the school has to report to Ofsted every year

B. the system has been adopted across the country

C. the public knew the system very well 11 years ago

D. the system hasn't become well-known until recently

30. What does Pat Walker thi'nk of the system?

A. Wasteful.

B. Absurd.

C. Helpful.

D. Risky.

31. What does the mother imply in the last paragraph?

A. Teachers have no right to judge or mark anyone.

B. Schools should have done it more professionally.

C. The move is supposed to get improved in the future.

D. The move has switched duty from teachers to parents.

D

"All work and no play makes Jack a dull boy." But now scientists have given us another warning: too much play with smartphones or computers makes you dull too.

"Many focus on the benefits of digital devices (设备) in education but ignore the costs," said Patricia Greenfield from the University of California, "losing the ability to understand the emotions of other people is one of the costs."

Greenfield and her research team did an experiment. They worked with 105 children who spend about 4.5 hours in front of screens on a school day. The students were asked to describe the emotions towards the pictures and videos of people who were happy, sad, angry or scared.

Then, half of them attended a five-day nature and science camp. There they had no smartphones, TV, or computers. The other half stayed in school and spent the five days as usual.

Five days later, all the children took the test again.

Students who had been to the camp got about 5 percent more answers correct than they had done before the camp. But the other group of students didn't show much improvement.

The study is not perfect in some sense, said the researchers. But Scientists say that the study is still a warning for us.

"Emotional skills develop in practice and the brain develops through real interaction.”said Professor Taylor, a professor at the University of San Francisco.

Researchers talked to 2,000 parents of children aged 2'16 in the UK about what activities their children could do confidently.

The results were surprising: Their children could use a tablet (平板电脑) (59%) and work a mobile phone (57%) more confidently than they could tie their shoe laces(鞋带) (53%)!

So, spend more time away from mobile phones and computers if you want to be an understanding friend, and not a member of what the Daily Mail called "Generation Helpless".

32. According to Professor Greenfield, using digital media in education leads to ______.

A. being in bad terms with family, members

B. failing to relate to other people's emotions

C. making more mistakes when taking exams

D. falling far behind others in all schoolwork

33. Scientists think the results of Greenfield's experiment ______.

A. are far from perfect

B. are quite surprising

C. are alarming for people

D. need to be improved

34. What can we know from the text?

A. Students learned how to describe emotions in the experiment.

B. Students living without screens did much better in studies.

C. Too much play with digital devices raised some worries.

D. Most of the UK children couldn't tie their shoe laces.

35. What is the best title for the text?

A. Screens harm emotions

B. Here comes a digital world!

C. Stay away from the Interact

D. How people become addicted?

第二节(共5小题,每小题2分满分10分)

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

While many people are physically active in high school, there are always many things for teens to compromise their healthy lifestyle. 36

Get plenty of rest. With homework and social commitments, teens in high school have a tendency to stay up late and rise early. 37 Then go to sleep early enough, turn off the television or radio and unplug the phone to prevent your sleep from being disturbed.

38 Teens are well-known for living on a diet of junk food and soda. Drink plenty of water and eat whole grains and vegetables daily. If you mainly eat nutritious foods, the occasional fast food hamburger or late night pizza won't hurt you.

Say no to cigarettes and alcohol. Lifelong habits start during high school years, so make sure the habits you are forming are good ones. Getting hooked on cigarettes and alcohol at a young age can lead to an adulthood spent battling addictive habits. 39

Exercise regularly. Physical activity helps build a strong body and mind. Teens who exercise throughout high school

benefit from a healthy body and a mind that is more at ease win less stress.

Share with friends and family. 40 A healthy teen will find someone to talk with about their problems rather than dealing with them alone or not dealing with them at all. If you can't trust your parents, turn to 3/our friends or teachers when you are upset or stressed out.

A. Eat a well balanced diet.

B. Motivate yourself to study harder than before.

C. They can affect your physical and mental health.

D. High school can be filled with anxiety and emotional pain.

E. However, it is you who can make a difference in the process.

F. Fortunately, there are always tips to help you stay on a healthy path.

G. To function properly, your body and mind need at least eight hours of sleep each night.

第三部分英语知识运用(共两节,满分45 分)

第一节完形填空(共20 小题;每小题1.5 分,满分30 分)

阅读下面短文,从短文后各题所给的四个选项(A、B、C 和D)中,选出可以填人空白处的最佳选项,并在答题卡上将该项涂黑。

It was a classic night. The noisy Mexico City gradually calmed down. The main stadium of Olympic track and field competition was 41 in the darkness, After making the scenes the marathon winners received the trophies (奖杯) and 42 the victor, Greenspan, a world-famous news producer, found the stadium . 43 . He was about to leave 44 he suddenly saw a bandaged (缠了绷带的) man with his right leg 45 with the blood ran into the stadium. This man ran 46 out of breath, but he didn't stop. Aider he ran along the track for a 47 and got to the finish line, he 48 on the ground.

Greenspan was very 49 and went over to ask. The young man, called Kowari from Tanzania, replied 50 , "That my country sent me here from over 20,000 kilometers is not to let me get off the 51 in the competition, but makes me 52 the game. I've fallen behind all other runners, I have a sacred (神圣的) goal like them, 53 ! will run to the goal! The 54 won't cheer me any more, but my 55 is watching me from behind..." Tears welled up in Greenspan's eyes. Soon, he spread the most 56 scene to every corner of the world.

Life should have a 57 of reaching the peak, but few can make it 58 . It is not whether we can reach the top but whether we've made the greatest 59 that counts. To reach the goal in the 60 is also a success.

41. A. supported B. enveloped C. reduced D. painted

42. A. celebrated B. forecast C. designed D. matched

43. A. busy B. empty C. strange D. crowded

44. A. while B. before C. once D. when

45. A. flooded B. spotted C. filled D. born

46. A. lamely B. sadly. C. quickly D. peacefully

47. A. second B. character C. circle: D. mile

48. A. jumped up B. stood out C. played D. collapsed

49. A. upset B. nervous C. disappointed D. curious

50. A. proudly B. excitedly C. gently D. madly

51. A. mark B. plane C. title. D. table

52. A. complete B. perform C. appreciate D. read

53. A. therefore B. otherwise C. though D. besides

54. A. runners B. judges C. audience D. listeners

55. A. father B. motherland C. team D. coach

56. A. exciting B. historical C. touching D. heartbreaking

57. A. dream B. encouragement C. comment D. stadium

58. A. ring true B. come true C. make sense D. take action

59. A. steps B. measures C. plans D. efforts

60. A. mind B. flesh C. distance D. field

第二节(共10 小题,每小题1.5 分,满分15 分)

阅读下面材料,在空白处填入适当的内容(1 个单词)或括号内单词的正确形式。

Recent heavy rains in Texas and the deadly heat wave in India are 61 (sign) that climate change is most likely to contribute 62 extreme weather events. "There are so many additional greenhouse gases in the atmosphere" today 63 Our climate we know for Sure 64 (affect) by them," says Jim White, director of CU-Boulder's Institute of Arctic and Alpine Research. "The heat wave in India is quite consistent with 65 we expect to see in the future."

According to Swiss researchers, extreme weather events worldwide are increasing with regularity, 66 (indicate) that they are becoming part of the Earth's overall climate pattern. White says, it's one thing to know that these extreme weather events 67 (happen) in the future but to know the exact time and place is something that seems quite 68 (possible).

"Since the atmosphere just holds more moisture(水蒸汽), we Can generally say that more rain in a warmer world is expected. That's not 69 (terrible) comforting if it's raining out-over the ocean, that doesn't do 70 (we) any good. What we do think is going to happen is that as the atmosphere warms up we'll get more rain per event.”

第四部分写作(共两节,满分35 分)

第一节短文改错(共10 小题;每小题1 分,满分10 分)

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用(\)划掉。

修改:在错的词下画一横线,并在该词下面写出修改后的词。

注意:1.每处错误及其修改均仅限一词;2.只允许修改10 处,多者(从第11 处起)不计分。

Organic foods are usually more~ expensive, .makes people unwilling to spend their, extra money. Besides, they do have certain advantages. To begin with, farmers doesn't use harmful chemicals on organically grown foods. As matter of fact, this is one of the reasons that Organic foods are more expensive. Without such chemicals, they need more care to stay health. Organically gr. own foods also had more nutrition than regular ones because the soil is careful done in a higher standard. According to study, organically grown foods provide with 27 percent more vitamin C and 21.1 percent more irons than regular ones on the average.

第二节书面表达(满分25 分)

假定你是校学生会主席李华,为了帮助你校外国交换生更好地了解中国传统文化,学生会将举办迎中秋活动。请根据以下提示用英语向他们作口头通知。

时间:2018年9月23日19:00—20:30

地点:报告厅(Lecture Hall)

内容:了解中秋节; 比赛用筷子; 学习做月饼等。

注意:1.词数100 左右;2.可以适当增加细节,使行文连贯。

___________________________________________________________________________________________________ ___________________________________________________________________________________________________

安徽省六校2019届高三第一次联考英语参考答案

听力:1----5 CBABC 6----10ACBCB 11----15 BABAC 16----20 CBCAA

阅读理解:

21----23 ADB 24----27ABCD 28----31 BDCD 32----35 BCCA 36----40 FGACD 完形填空:

41----60 BABDB ACDDC AACCB CABDA

语法填空:

61. signs 62. to 63. that 64. is affected 65. what

66. indicating 67. will happen 68. impossible 69. terribly 70. us

短文改错:

1. makes----making

2. Besides----However/Yet/Still

3. doesn't ----don't

4. matter 前加a

5. that →why

6. Health→healthy

7. Had→have

8. careful→carefully

9. 去掉with 10. irons →iron Possible version:

Good afternoon, everyone!

May I have your attention, please?

I am Li Hua, chairman of the Students' Union. With the Middle-Autumn Festival approaching, we plan to throw a party for our foreign students. At the party, a brief introduction about the origin of the Middle-Autumn Festival will be given. To make the party more interesting and get everyone involved, we've prepared special gift for winners of our

chopsticks competition. Food will also be on offer, but only through the effort of participants. We'll show you how to make moon-cakes, Chinese traditional food for the festival.

The party will take place on September 23, 2018, 19:00 - 20:30, in the School Lecture Hall.

We sincerely hope to see you there. Thank you.

四川省武胜中学2013届高三下学期第一次月考化学试题 Word版含答案

武胜中学2013届补习班第二期第一次月考 化学试题 可能用到的相对原子质量:H:1 C:12 O:16 Si:28 F:19 S:32 K:39 Cu:64 第I 卷(选择题) 一、选择题:本题共7小题,每小题6分,在每小题给出的四个选项中,只有 一项是符合题目要求的。 1.化学与科学、技术、社会、环境密切相关。下列有关说法中不正确的是:( ) A .厨房中燃气泄漏,立即打开抽油烟机排气 B .减少燃煤的使用,改用风能、太阳能等能源,符合“低碳生活”理念 C .在食品袋中放入盛有硅胶和铁粉的透气小袋,可防止食物受潮、氧化变质 D .“血液透析”利用了胶体的性质 2.N A 代表阿伏加德罗常数,下列说法正确的是:( ) A .分子数为N A 的CO 、C 2H 4混合气体体积约为22.4 L ,质量为28 g B .已知2CO(g)+O 2(g) 2CO 2(g);△H=-akJ ﹒mol -1 将2N A 个CO 与N A 个O 2混合充分反应放出akJ 的热量。 C .用石灰乳完全吸收l mol Cl 2时,转移电子的数目是N A D .常温下,0.1mol/LNa 2CO 3溶液中,含有阴离子的总数大于0.1N A 3.下列叙述或离子方程式书写正确的是 ( ) A. 将少量二氧化硫通入次氯酸钠溶液中:SO 2+H 2O+ClO -=SO 42-+Cl -+2H + B. 向含有F e 2O 3悬浊液中通入HI 气体: F e 2O 3 + 6H + = 2Fe 3+ + 3H 2O C .用惰性电极电解MgCl 2溶液:2Cl - + 2H 2O Cl 2↑+ H 2↑+ 2OH - D .等物质的量的Ba(OH)2与(NH 4)2Fe(SO 4)2在溶液中反应: Ba 2++2OH -+2NH 4++SO 42-= BaSO 4↓+2NH 3·H 2O 4.下列有关化学用语使用正确的是 ( ) A.HClO 的电子式: B.具有16个质子、 16个中子和18个电子的微粒是3216 S C.邻羟基苯甲酸的结构简式: D.乙烯的比例模型: 5.下列叙述错误的是 ( ) A .把a L 0.1 mol/L 的CH 3COOH 溶液与b L 0.1 mol/L 的 KOH 溶液混合,所得溶液中一定 存在:c (K +)+ c (H +) = c (CH 3COO -) + c (OH - ) B .氯水中:c(Cl -)>c(H +)>c(OH -)>c(ClO -) C .把0.1 mol/L 的NaHCO 3溶液与0.3 mol/L 的Ba(OH)2溶液等体积混合,所得溶液中一定存在:c (OH -) >c (Ba 2+)>c (Na +)> c (H +) D .常温下,在pH=3的CH 3COOH 溶液和pH=11的NaOH 溶液中,水的电离程度相同 6.向一定量的NaOH 溶液中逐滴加入AlCl 3溶液,生成沉淀Al(OH)3的量随AlCl 3加入量的变化关系如图所示。则下列离子组在对应的溶液中一定能大量共存的是( ) A .a 点对应的溶液中:Na +、Fe 3+、SO 42-、HCO 3- B .b 点对应的溶液中:Na +、S 2-、SO 42-、Cl -

2015届高三旅游类专业第一次月考

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理综试题
命题:合肥一六八中学
考试时间:150 分钟 分值:300 分
可能用到的相对原子质量:H:1 C:12 O:16 Cl:35.5 Cu:64
第Ⅰ卷 (选择题 共 126 分)
一 选择题(本题共 13 小题,每小题 6 分,共 78 分,每小题只有一个选项符合题意)
1.下列有关细胞器的说法正确的是(

A.核糖体是细菌、噬菌体、酵母菌唯一共有的细胞器
B.线粒体是进行有氧呼吸的主要场所,在其中生成的产物有丙酮酸、二氧化碳和水等
C.叶绿体是细胞进行光合作用的必需结构,其中含有少量 DNA 和 RNA
D.在植物细胞有丝分裂的末期,细胞中的高尔基体活动增强
2.下列有关生物科学研究方法的叙述正确的是(

A.卡尔文利用同位素示踪技术探明了 CO2 中的 C 在光合作用中的转移途径 B.摩尔根运用类比推理法证实了基因在染色体上
C.萨克斯通过对照实验证明光合作用的产物中有葡萄糖
D.赫尔希和蔡斯通过噬菌体侵染细菌的实验证明了 DNA 是主要的遗传物质
3.下列有关细胞的物质输入和输出的说法中正确的是( )
A.只有大分子物质才能通过胞吞或胞吐的方式进出细胞
B.同种离子进出所有细胞的跨膜运输方式是相同的
C.土壤板结会影响植物根部细胞转运某些离子的速率
D.当植物细胞内外存在浓度差时,细胞就会发生质壁分离或复原
4.某常染色体隐形遗传病在人群中发病率为 1%,色盲在男性中发病率为 7%,现有一对
表现正常的夫妇,妻子为该常染色体遗传病致病基因和色盲致病基因携带者。那么他们
所生男孩同时患上上述两种遗传病的概率是(

A.1/24
B.1/44
C.1/88
D.7/2200
5.自然种群的增长一般呈“S”型。假设某自然种群的数量为 N,环境容纳量为 K,S1-S5
是“S”型曲线上的 5 个点。根据下表所示数据,有关说法错误的是(

曲线上的点 S1 S2 S3 S4 S5
种群数量 20 50 100 150 180
(K-N)/K 0.90 0.75 0.50 0.25 0.10
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