翻译中考英语阅读文章:北京市东城区2012中考英语二模C 篇阅读

翻译中考英语阅读文章:北京市东城区2012中考英语二模C 篇阅读,第1张

Different colours can affect us in many different ways; that’s according to Verity Allen
不同的颜色能以不同的方式影响我们,这话是维里蒂艾伦说的。
In a new programme “Colour me Healthy”, Verity looks at the ways that colours can influence how hard we work and the choices we make They can even change our emotions and even influence how healthy we are
在新节目“为我健康增色”中,维里蒂观察色彩影响我们的方式方法,颜色影响我们工作的努力程度和我们做出的决定。它们甚至能改变我们的情绪,甚至能影响我们的健康程度。
“Have you ever noticed how people always use the same colours for the same things” says Verity “Our toothpaste is always white or blue or maybe red It’s never green Why not For some reason we think that blue and white is clean, while we think of green products(产品)as being a bit unpleasant
“你是否曾注意过,人们总是同一种东西用同一款颜色,人们是怎样做的呢?”维里蒂说,“我们的牙刷总是白色或蓝色,又或许是红色。但绝不是绿色。为何不是?因为某些原因,我们觉得蓝色和白色是干净的,而我们认为绿颜色的产品有些不让人愉快。
It’s the same for businesses We respect a company which writes its name in blue or black, but we don’t respect one that uses pink or orange People who design设计new products can use these ideas to influence what we buy”
对企业来说,也是如此。我们尊敬以蓝色或黑色书写其名的公司,却不尊敬将名字写成粉色或橘色的公司。新产品的设计者可根据这些理念来影响我们所购买的东西。
During the programme, Verity studies eight different colours, two colours in each part
在节目中,维里蒂研究八种不同的颜色,每两种分为一组。
She meets people who work in the colour industry, from people who design food packages, to people who name the colours of lipsticks
她拜访那些在色彩领域工作的人,从食品包装设计师,到唇膏色彩命名者。
Some of the people she meets clearly have very little scientific knowledge to prove their ideas, such as the American “Colour Doctor” who believes that serious diseases can be treated successfully by the use of coloured lights
她见过的人中,有些明显不具备科学的知识来证明他们的观点,比如说一位美国色彩医生,这位医生相信严重的疾病能用彩色灯成功治愈。
However, she also interviews real scientists who are studying the effects of green and red lights on mice, with some surprising results
但是,她也采访那些真正的科学家,他们正在研究红绿灯对老鼠的影响,并取得了一些出人意料的成果。
Overall, it’s an interesting show, and anyone who watches it will probably find out something new
总之,这是一个有意思的节目,任何一位看节目的人或许都能在其中发现新的东西。
But because Verity goes out of her way to be polite to everyone she meets on the programme, it’s up to you to make your own decisions about how much you should believe
然而出于维里蒂对每一位节目受访者的礼貌,(受访者的话)其可信度有多少,就取决于你自己了。
(最后一句话的言外之意:维里蒂只作采访不作评论,观众自己看自己判断真假。)

你看看这种形式的行不!行的话,给我你的邮箱。我给你发word版,每个专项我都有
定语从句专项训练
题组一:2009年全国高考题
1(09山东24)Whenever I met her, _________ was fairly often, she greeted me with a sweet smile
A who B which C when D that
2(09宁夏海南28)She brought with her three friends, none of I had ever met before
A them B who
C whom D these
3(09江苏23)Because of the financial crisis, days are gone _ _ local 5-star hotels charged 6,000 yuan for one night
A if B when C which D since
4(09天津5)A person ______ e-mail account is full won’t be able to send or receive any e-mails
A who B whom C whose D whoever
5(09陕西11)Gun control is a subject Americans have argued for a long time
A of which B with which C about which D into which
6(09上海34)Mozart’s birthplace and the house ______ he composed ‘The Magic Flute’ are both museums now Ks5u
A where B when C there D which Ks5u
7(09江西26)The house I grew up ________ has been taken down and replaced by an office building
A in it B in C in that D in which
8(09四川20)She’ll never forget her stay there _ __ she found her son who had gone missing two years before
A that B which C where D when
9(09辽宁23)They’ve won their last three matches ________I find a bit surprising
A that B when C what D which
10(09福建24)It’s helpful to put children in a situation they can see themselves differently
A that B when C which D where
11(09浙江14)I have reached a point in my life ______ I am supposed to make decisions of my own
A which B where C how D why
12(09重庆34)Life is like a long race _____we compete with others to go beyond ourselves
A why B what C that D where
13(09湖南26)I was born in New Orleans, Louisiana, a city name will create a picture of beautiful trees and green grass in our mind
A which B of which C that D whose
14(09全国Ⅱ17)My friend showed me round the town, was very kind of him
A which B that C where D it
15(09北京26)—What do you think of teacher ,Bob?
—I find it fun and challenging It is a job ___ you are doing something serious but interesting
A where B which C when D that
题组二:2008年高考题
1(08北京28)I’ll give you my friend’s home address, I can be reached most evenings�
Awhich Bwhen Cwhom Dwhere
2(08安徽26)All the neighbors admire this family, the parents are treating their child like a friend�
Awhy Bwhere Cwhich Dthat
3(08江西35)Later in this chapter cases will be introduced to readers consumer complaints have resulted in changes in the law
Awhere Bwhen Cwho Dwhich
4(08湖南31)The growing speed of a plant is influenced by a number of factors, are beyond our control
Amost of them Bmost of which� Cmost of what Dmost of that
5(08陕西13)The man pulled out a gold watch, were made of small diamonds�
Athe hands of whom Bwhom the hands of� Cwhich the hands of Dthe hands of which
6(08四川4)For many cities in the world,there is no room to spread out further, New
York is an example
Afor which Bin which Cof which Dfrom which
7(08重庆21)They will fly to Washington, they plan to stay for two or three days
Awhere Bthere Cwhich Dwhen
8(08浙江8)Yesterday she sold her car, ______ she bought a month ago
A when B where C that D which
9(08福建31)By nine o’clock,all the Olympic torch bearers had reached the top of Mount Qomolangma, appeared a rare rainbow soon
Aof which Bon which Cfrom which Dabove which
10(08江苏24)The Science Museum, we visited during a recent trip to Britain,is one of London’s tourist attractions
Awhich Bwhat Cthat Dwhere
11(08山东26)Occasions are quite rare I have the time to spend a day with my kids
Awho Bwhich Cwhy Dwhen
题组四:2009年联考题
1.(09北京市东城区高三二模试题)
It is really hard to find a nice place in this city we can have a picnic
A.where B.that C.which D.when
2.(09北京市海淀区高三二模)
They went on well at first but eventually everything ______ they had worried about happened.
A.which B.what C.that D.when
3.(09北京市西城区高三二模)
The small mountain village we spent our holiday two years ago lies in Hubei
A.what B.where C.that D.which
4.(09北京市宣武区高三二模)
He liked to go to dances and parties he could have a good time just sitting and watching
A.where B.when C.which D.why
5.(09山东省莱芜二中高三二模检测)
We went to Mountain Tai last weekend, ________, not surprisingly, was crowded with visitors
A.that B.which C.where D.when
6 (09山东省聊城市高三二模)
Bay, Amazon and Wall Mart are popular websites ______ people can sell goods to each other
A where B which C when D whose
7.(09山东省诸城市高三二模)
Safety in schools has been of great concern because of frequent reports about accidents _____ students got injured or killed while in school
A.in which B.for which C.which D.when
8.(09山东省淄博市高三二模)
Just as Kobe Bryant said, Yao Ming has built the bridge for all of us, ____ is not only for the sport of basketball, but for the different cultures of this world
A.who B.it C.which D.that
9.(09天津市河北区高三年级总复习质量检测(二))
When young Tom cried,Father often told him that tears were signs of being weak _____a man wasn't supposed to be.
A.that B.which C.where D.whom
10.(09天津市河西区第二学期高三年级总复习质量调查)
Both the family and the society exceptional children live are often the key to
their -growth and development.
A.which B.what C.in which D.that
11.(09天津市红桥区高三英语二模)
The Sanlu milk powder incident happened in September 2008, many countries
around the world paid close attention to.
A.that B.when C.which D.what
12.(09浙江省杭州市第二次高考科目教学质量检测)
The beautiful village, we spent our holiday last month,lies at the foot of a mountain.
A.what B.that C.which D.where
13 (09河北省邯郸市高三第二次模拟)
As a coach,you should know clearly about the direction _______your team should develop.
A to which B in which C on which D for which
14.(09辽宁省沈阳二中高三二模)
About 200 Chinese businessmen left for Europe yesterday, they would sign a series of deals worth up to 15 billion U.S dollars.
A.when B.what C.which D.where
15.(09临沂市高三教学质量一模)
Martin Van Buren was the eighth President of the United States and the first ______ native language was not English but Dutch.
A.that B.whose C.Which D.where
16.(09福建省厦门市高三一模试题)
We then moved to Parisin 2001, we lived for six years.
A.when B.where C.that D.there
17 (09江苏省南通市高三一模试题)
I’m told that languagepractisingcom is a free website ______learners can not just learn
various languages but also chat online
A where B which C that D what
18 (09高考北京市东城区高三一模试题)
I am very grateful to my high school teachers, without ________help I wouldn’t be so excellent
A whom B them C which D whose
19.(09高考北京市高三4月抽样试题)
More wild tigers have been seen in the forest around this area, there used to be very few.
A.when B.where C.what D.which
20.(09高考北京市海淀区高三4月期中练习)
Last week,we watched Beijing Opera, style was unfamiliar to most of us.
A.what B which C.where D.whose
21.(09高考山东省潍坊市高三一模)
English online.corn is a free site_________visitors can not just learn the English language
but also chat online.
A.where B.which C.that D.what
22.(09安徽省示范高中皖北协作区高三联考)
—Where did you meet him while in Beijing
—It was in the hotel I stayed.
A.that B.which C.when D.where
23.(09山东省青岛市高三教学统一质量检测)--- Where did you meet the famous actress
--- It was in the supermarket we went shopping last Sunday
A.which B.that C.where D.there
24.(09江西省十所重点中学联考盟校第一次模拟考试)
The supermaket provides cheap food all its customers can afford.
A.$such:that B.such;so C so;that D.such;as
25 (09南京市高三第一次调研测试)
He wrote a lot of novels, none of ______ was translated into a foreign language
A them B what C that D which
26 (09南京市高三第一次调研测试)
Everyone has periods in their lives ______ everything seems very hard
A when B where C which D that
27.(09山东省高三教学质量检测)
All the neighbors admire this family, the children and parents build up a friendly
relationship.
A.why B.where C.which D.that
28 (09石家庄市高中毕业班第一次模拟考试)
Tibet is a beautiful part of China, without ______our country would be incomplete
A it B what C where D which
题组一:2009年全国高考题
1(09山东24)答案B 解析本题考查连词的用法,非限制性定语从句,指代前面一个句子,故用which
2(09宁夏海南28)答案C
解析 考查定语从句中的非限制性定语从句。句意为:她带着她的三个朋友,他们三个中没有一个人我曾见过。表示“部分的词语+of+关系代词” 在非限制性定语从句指人只能用whom。
3(09江苏23)答案B
解析 由于金融危机,当地五星级酒店一晚收费6000元的日子不复存在了。when引导的从句做days的定语。
4(09天津5)答案C
5(09陕西11)答案C
解析 考查定语从句,先行词是Gun control,指物,关系词在从句中做介词的宾语,介词前置,介词与从句动词构成搭配argue about sth,选C。
6(09上海34)答案 A
7(09江西26)答案 B
解析 本题考查定语从句。The house ( which / that I grew up in ) , 主语后面紧跟的是定语从句。
8(09四川20)答案 C
9(09辽宁23)答案 D
解析 考查非限定性定语从句关系词的辨析。此处意思是“我发现他们已经赢得了最后的三场比赛,这一点令人有点吃惊”,which代替上句“They’ve won their last three matches”做find的宾语,选D。A项不能用于非限制性定语从句中,B,C此处没有他们的意思。
10(09福建24)解析 考查定语从句。先行词是situation,指物,亦可指地点,关系词在从句中做地点状语,用关系副词where,选D。
11(09浙江14)答案 B
12(09重庆34)答案 D
13(09湖南26)答案 D
解析 考查定语从句。先行词在定语从句中充当定语,意思为这个城市的名字。
14(09全国Ⅱ17)答案 A
解析 考查非限制性定语从句(这儿的which指代前面整句话内容。)
15(09北京26)答案 A
题组二:2008年高考题
1(08北京28)答案 D
解析 由于先行词是home address表示地点,故定语从句中的关系词应为where。
2(08安徽26)答案 B
解析 句意为:所有的邻居都对这个家庭赞赏不已,在这个家庭里,父母对待他们的孩子就像对待朋友一样。
family后跟非限制性定语从句,此处缺少地点状语,故用where。
3(08江西35)答案 A
解析 这个从句应是定语从句,先行词是前面的cases,空白处在从句中作状语,应用where引导,指抽象的地点,意为“在这些案例中……”。
4(08湖南31)答案 B
解析 句意为:植物的生长速度受诸多因素的影响,绝大多数的因素是我们控制不了的。which引导非限制性
定语从句,且作介词of的宾语。
5(08陕西13)答案 D
解析 watch是物,故定语从句的引导词不可用whom,可排除A、B两项。由句意可知,空格处可填入whose hands或the hands of which表示所属关系。
6(08四川4)答案 C
解析 句意为:对于世界上许多城市来说,没有可以进一步延展的空间,其中纽约是一个例子。表达“……中的一个……”应使用介词of,用以表示所属关系。
7(08重庆21)答案 A
解析 where引导非限制性定语从句,在从句中作地点状语。
8(08浙江8)答案 D
解析 which引导非限制性定语从句,充当bought的宾语。that不能引导非限制性定语从句。
9(08福建31)答案 D
解析 考查介词+关系代词引导的定语从句。which指代Mount Qomolangma,rainbow应在山峰的上空,故用介词above。
10(08江苏24)答案 A
解析which引导非限制性定语从句,指代先行词the Science Museum,同时又在从句中作visited的宾语。
where为关系副词,不能作宾语;that不能引导非限制性定语从句;what不能引导定语从句。
11(08山东26)答案 D
解析 when此处为关系副词,引导定语从句,修饰先行词occasions,when在从句中作时间状语。
题组四:2009年联考题
1.(09北京市东城区高三二模试题)答案 A
2.(09北京市海淀区高三二模)答案 C
3.(09北京市西城区高三二模)答案 B
4.(09北京市宣武区高三二模)答案 A
5.(09山东省莱芜二中高三二模检测)答案 B
6 (09山东省聊城市高三二模)答案 A
7.(09山东省诸城市高三二模)答案 A
8.(09山东省淄博市高三二模)答案 C
9.(09天津市河北区高三年级总复习质量检测(二))答案 B
10.(09天津市河西区第二学期高三年级总复习质量调查)答案 C
11.(09天津市红桥区高三英语二模)答案 C
12.(09浙江省杭州市第二次高考科目教学质量检测)答案 D
13 (09河北省邯郸市高三第二次模拟)答案 B
14.(09辽宁省沈阳二中高三二模)答案 D
15.(09临沂市高三教学质量一模)答案 B
16.(09福建省厦门市高三一模试题)答案 B
17 (09江苏省南通市高三一模试题)答案 A
18 (09高考北京市东城区高三一模试题)答案 D
19.(09高考北京市高三4月抽样试题)答案 B
20.(09高考北京市海淀区高三4月期中练习)答案 D
21.(09高考山东省潍坊市高三一模)答案 A
22.(09安徽省示范高中皖北协作区高三联考)答案 D
23.(09山东省青岛市高三教学统一质量检测)答案 C
24.(09江西省十所重点中学联考盟校第一次模拟考试)答案 D
25 (09南京市高三第一次调研测试)答案 D
26 (09南京市高三第一次调研测试)答案 A
27.(09山东省高三教学质量检测)答案 B
28 (09石家庄市高中毕业班第一次模拟考试)答案 D

You Are What You Eat
食物影响你的身(你是你所吃进去的)
Genetic(基因的)engineering is the scientific change of the genetic material in a
living organism.It allows scientists to identify specific genes, to remove them from
an organism's chromosomes (染色体), improve them, analyze them, and possibly clone them, and to then reinsert the changed gene into the original organism, or a completely different organism.Unlike traditional breeding (繁殖), where a desired quality would be bred within the same species, genetic engineering can insert desired ones into organisms of different species.Wow…Did you catch that
基因工程一个研究生物体内遗传物质的变化的学科。它使科学家们能够定义具体的基因,并通过移动生物体内染色体上的基因来提升和分析这些生物,甚至可能克隆它们。之后,科学家们会重新把提取出的已经改变了的基因注射回原来的生物体内,或者注射到完全不同的一个个体中。不像传统的繁殖需要通过繁衍同一个高质量的物种,基因工程可以导入基因到不同的物种里。哇。。。你跟上了吗?
Genetic engineering creates many positive contributions to agriculture.For example, by genetically engineered(GE)foods, anti-cancer agents, minerals and vitamins can be increased.Improved taste, shelf life, and better transport are all possible.Also, GE plants can increase pest and bacterial resistance, therefore, making the food safe for consumers.
基因工程对农业做出了很多好的贡献。比如说,通过传基因技术的食物在抗癌物质,矿物质和维他命方面都有提高。口感,在超市的货价摆放时间以及运输上都有更高的提升空间。另外,转基因植物的抗害虫和细菌的能力都有曾强,所以可以提供出更加完全的食物。
The public is also concerned about the unknown health risks.With limited understanding of genes, scientists cannot predict possible effects.Because most genes introduced into GE plants come from sources not introduced into the human
body, it is impossible to know if they will cause reactions.Moreover, due to the lack of labeling if allergies develop, it will be extremely difficult to find the origin of them.
同时,公众也会担心这些转基因食物所带来的未知的风险。由于对于基因理解的局限性,科学家们也不能预测出可能的影响。因为大多数用于转基因植物的基因的来源并没有人类采用过,所以也不能知道人在摄取转基因食物后体内会有什么反应。另外,由于缺乏在商品上对过敏的标识,很能判断出在人的体内的不良反应的准确来源(也有可能是由过敏导致的)。
There is also a major moral question in many minds.For many, the conflict is not if it is safe or not, but it disturbs them because it is unnatural and unnecessary.We are currently producing one and a half times the amount of food needed to feed the
world, yet one in seven people are starving.GE food is unnecessary, and fails to address the root of hunger.Many believe that the only people who will benefit are the corporations that produce it.
很多人也会把转基因食物的问题引伸到道德上的问题。对于很多人来说,他们担心的不是安全性而是转基因食物的非自然和非必要性。我们人类目前产出的食物是世界所需总量的15倍,但是还是有很多地区的人面临着饥荒。转基因食物不是必需的,而已无法根治饥荒。很多人相信只有生产这些作物的集团公司可以从中获益。
Scientists cannot foresee the possible effects of GE foods, yet we eat them every day without even knowing it.We already have enough food, so why create more that
could be potentially harmful to us, to the Earth and to all wildlife I think that the benefits are amazing, but until we know for sure how these foods will affect us, they are not worth the risk.
科学家不能预测转基因食物对人类社会所带来的影响,但是我们却不知道我们现在每天就在吃这些转基因食物。 我们已经有足够的食物,所以如果再继续生产食物会不会对我们,对地球,对野生动物产生潜在的危害?我(笔者)认为转基因食物所带来的利益是不可想像的,但是我们不值得尝试这些食物的潜在风险知道我们可以确定它们会给我们带来什么影响。
求采纳!

语言:广东教育出版社版(以下简称为“广东教育”),数学:英语:北京师范大学(以下简称为“北京师范大学”),北京师范大学,物理:广东省教,化学:人民教育出版社版(以下简称“人教版”),生物:人教版,政治:PEP,地理:湖南教育出版社版(简称“湖南教育”),历史:岳麓书店版本。
注意:
高一时的主要学校的高中学习选修部分的必修部分,选修部分的学习内容根据您的文理分科;
三个科目的语文,数学,英语两本书一个学期,必修部分的数学书籍的顺序不一定(2010年我下一个更高的最后一个学期,数学是必修和必修四学期必修3,必修五强制两个第十一小学)上周选修;
高中课程一般都在11年级结束的学期。
我希望对您有用!

北京市西城区2012年高三一模试卷
数 学(理科) 20124
第Ⅰ卷(选择题 共40分)
一、选择题共8小题,每小题5分,共40分 在每小题列出的四个选项中,选出符合题目要求的一项
1.已知全集,集合,则( )
(A) (B)
(C) (D)
2.执行如图所示的程序框图,若输入,则输出的
值为( )
(A)
(B)
(C)
(D)
3.若实数,满足条件则的最大值为( )
(A) (B) (C) (D)
4.已知正六棱柱的底面边长和侧棱长相等,体积为.
其三视图中的俯视图如图所示,则其左视图的面积是( )
(A) (B) (C) (D)
5.已知函数的最小正周期是,那么正数( )
(A) (B) (C) (D)
6.若,,,则下列结论正确的是( )
(A) (B)
(C) (D)
7.设等比数列的各项均为正数,公比为,前项和为.若对,有,则的取值范围是( )
(A) (B) (C) (D)
8.已知集合,其中,且则中所有元素之和等于( )
(A) (B) (C) (D)
第Ⅱ卷(非选择题 共110分)
二、填空题共6小题,每小题5分,共30分
9 某年级名学生在一次百米测试中,成绩全部介于秒
与秒之间.将测试结果分成组:,,
,,,得到如图所示的频率分
布直方图.如果从左到右的个小矩形的面积之比为
,那么成绩在的学生人数是_____.
10.的展开式中,的系数是_____.(用数字作答)
11 如图,为⊙的直径,,弦交
于点.若,,则_____.
12 在极坐标系中,极点到直线的距离是_____.
13 已知函数 其中.那么的零点是_____;若的
值域是,则的取值范围是_____.
14 在直角坐标系中,动点, 分别在射线和上运
动,且△的面积为.则点,的横坐标之积为_____;△周长的最小值是
_____.
三、解答题共6小题,共80分 解答应写出文字说明,演算步骤或证明过程
15(本小题满分13分)
在△中,已知.
(Ⅰ)求角;
(Ⅱ)若,,求.
16(本小题满分13分)
乒乓球单打比赛在甲、乙两名运动员间进行,比赛采用局胜制(即先胜局者获胜,比赛结束),假设两人在每一局比赛中获胜的可能性相同
(Ⅰ)求甲以比获胜的概率;
(Ⅱ)求乙获胜且比赛局数多于局的概率;
(Ⅲ)求比赛局数的分布列
17.(本小题满分14分)
如图,四边形与均为菱形, ,且.
(Ⅰ)求证:平面;
(Ⅱ)求证:∥平面;
(Ⅲ)求二面角的余弦值.

18(本小题满分13分)
已知函数,其中
(Ⅰ)当时,求曲线在点处的切线方程;
(Ⅱ)求的单调区间
19(本小题满分14分)
已知椭圆的离心率为,定点,椭圆短轴的端点是,,且
(Ⅰ)求椭圆的方程;
(Ⅱ)设过点且斜率不为的直线交椭圆于,两点试问轴上是否存在定点,
使平分?若存在,求出点的坐标;若不存在,说明理由
20(本小题满分13分)
对于数列,定义“变换”:将数列变换成数
列,其中,且,这种“变换”记作继续对数列进行“变换”,得到数列,…,依此类推,当得到的数列各项均为时变换结束.
(Ⅰ)试问和经过不断的“变换”能否结束?若能,请依次写出经过“变换”得到的各数列;若不能,说明理由;
(Ⅱ)求经过有限次“变换”后能够结束的充要条件;
(Ⅲ)证明:一定能经过有限次“变换”后结束.

在近世纪以来,科学家们一直以为运动员的疲惫或力竭是源于肌肉。明确的解释各异,但全是基于「极限理论」。换句话说,肌肉的疲惫是因为它们已达物理极限:要么它们缺燃料或氧气,或者已被身体分解出来有害副产品淹没了。
但是,在过去的几年中,南非开普敦大学的教授蒂莫西• 诺克斯(Timothy Noakes),再三审查这一标准理论。他争辩说,疲惫并非由肌肉所传递的负荷过重信号所引起的,而是来自脑部的一种情绪反应。他的新理论的基础论调是大脑会在肌肉面临力竭时,不让身体开启肌肉能量。当大脑决定该退下来之时,它会制造些难以忍受的肌肉惫。这「中央指挥」理论仍存在著争议,但它确实解释了许多令人费解的运动性能的表现。
最近,诺克斯从他的「乳酸悖论」中有新发现,使他开始认真研究这领域。乳酸是一种经由运动分解出来的副产品,如它堆积起来,常被说成是构成疲惫的原因之一。但是,当研究对象在某些特定的人为条件下锻炼,即使乳酸水平仍然很低,他们也变得疲惫。
也不是他们的血液中的氧含量降至过低水平,以致阻碍他们持续下去。显然地,有别的因素导致他们在达生理极限之前变得疲惫


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