混合静脉血氧张力

Hospital emergency rooms treat injured fingers all the time. Without treatment, a bad cut can lead to permanent damage. But how should a person know when a bleeding cut is serious enough to require medical attention? We asked Dr. Martin Brown, chairm

发表于:2018-12-15 / 阅读(172) / 评论(0) 分类 2011年VOA慢速英语(一)月

Anyone who has vacationed in the higher elevations of Colorado, such as Vail and Estes Park, will tell you altitude sickness can be a real problem. Loss of appetite, nausea, vomiting, weakness, dizziness, and difficulty sleeping can plague those visi

发表于:2018-12-18 / 阅读(145) / 评论(0) 分类 2018年NPR美国国家公共电台2月

Every time you inhale, oxygen passes from your windpipe to your lungs and on into your bloodstream. But what if your windpipe was blocked? Getting the gas straight to your blood could save your life. Wait, put down that syringea large air bubble in a

发表于:2018-12-24 / 阅读(153) / 评论(0) 分类 Scientific American(六)月

Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a

发表于:2018-12-24 / 阅读(119) / 评论(0) 分类 2017年Scientific American(二)月

What Causes A Lump In Your Throat? Oftentimes when we cry, we feel a lump in the throat. Does a lump actually form, or is there some other explanation? 图片1 Explanation The lump-like thing we feel when overcome by emotion has to do with how the ne

发表于:2018-12-31 / 阅读(156) / 评论(0) 分类 英语听力文摘 English Digest

If blood didnt circulate through our bodies, carrying oxygen and nutrients, we wouldnt be able to live. Blood is so important to life that the body constantly makes new blood. To do this, the body must produce the liquid part of blood, called plasma,

发表于:2018-12-31 / 阅读(126) / 评论(0) 分类 英语听力文摘 English Digest

Todd: OK, Michael, you are into spear fishing! Michael: Yes, I enjoy going spear fishing Todd: OK. Can you talk about that a bit. Michael: Yeah, sure. Spear fishing basically is a sport that you dive under the wate with the aid of flippers, wet suit

发表于:2019-01-02 / 阅读(157) / 评论(0) 分类 英语访谈对话

The body of an animal may well be compared with(1) some machine like a locomotive engine. Indeed, the animal body is a machine. It is a machine composed of(2) many parts, each part doing some particular kind of work for which a particular kind of str

发表于:2019-01-07 / 阅读(204) / 评论(0) 分类 英语背诵文选第一册

VT tidal volume 潮气容积 TLC total lung capacity 肺总量 VC vital capacity 肺活量 IC inspiratory capacity 深吸气量 ERC expiratory reserve capacity 补呼吸量 RV residual volume 残气容积 FRC functional residual capacity 功能残气量

发表于:2019-01-08 / 阅读(166) / 评论(0) 分类 医学英语

[00:02.44]Unit 21 Human Biology Warm-up [00:07.39]Exercise 2 Listen and guess which parts of [00:11.04]the body of being described. [00:13.00]Which words help you to decide. [00:16.79]1 This organ weighs about a kilo [00:19.77]and is made up of two s

发表于:2019-01-10 / 阅读(459) / 评论(0) 分类 北师大版高中英语模块7(选修)

Lung 肺 How many lungs do we have? 我们有多少块肺呢? We have two lungs in our body. 我们有两块肺。 Lungs are protected by ribs. 肺由肋骨保护。 They are very big. They are about two times as large as one of our feet. 它们都很

发表于:2019-01-10 / 阅读(175) / 评论(0) 分类 与美国小学生一起学英文第4册

Todd: OK, Michael, you are into spear fishing! Michael: Yes, I enjoy going spear fishing Todd: OK. Can you talk about that a bit? Michael: Yeah, sure. Spear fishing basically is a sport that you dive under the water with the aid of flippers, wet suit

发表于:2019-01-11 / 阅读(149) / 评论(0) 分类 原版英语对话1000个

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. Summer is a busy time for travel. Today, we discuss ideas about how to stay healthy on a long trip. VOICE ONE: For years, people have w

发表于:2019-01-11 / 阅读(146) / 评论(0) 分类 VOA慢速英语2009年(七)月

Todd: OK, Michael, you are into spear fishing! 好的,迈克尔,你喜欢捕鱼! Michael: Yes, I enjoy going spear fishing. 是的,我喜欢捕鱼。 Todd: OK. Can you talk about that a bit. 好的,你能跟我们聊聊捕鱼吗。 Michael:

发表于:2019-01-15 / 阅读(154) / 评论(0) 分类 实战口语情景对话

By David McAlary Washington 16 May 2006 Long distance air travel can increase the risk of blood clots in the legs, a potentially fatal condition that has been known for more than half a century. Now B

发表于:2019-01-19 / 阅读(183) / 评论(0) 分类 2006年VOA标准英语(五月)

Todd: OK, Michael, you are into spear fishing! Michael: Yes, I enjoy going spear fishing Todd: OK. Can you talk about that a bit. Michael: Yeah, sure. Spear fishing basically is a sport that you dive under the wate with the aid of flippers, wet suit

发表于:2019-01-20 / 阅读(152) / 评论(0) 分类 原版英语对话1000个

A five-year study aimed at finding ways to reduce some complications of diabetes tried several approaches but failed to reduce the risk of heart attack and stroke. But the study did identify some effective ways to reduce common vision, kidney, and ne

发表于:2019-02-12 / 阅读(148) / 评论(0) 分类 VOA标准英语2010年(七)月

Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a

发表于:2019-02-14 / 阅读(188) / 评论(0) 分类 2017年Scientific American(二)月

Voice 1 Welcome to Spotlight. Im Adam Navis. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Eric was only sixteen years ol

发表于:2019-03-04 / 阅读(162) / 评论(0) 分类 环球英语 Spotlight

台湾籍旅美老师今天交给我们的句子是: Blood is the tissue that not only carries cells that transport oxygen, for example, the red blood cells, or fights infectious diseases, but it also carries messenger molecules, hormone-like facto

发表于:2019-03-05 / 阅读(189) / 评论(0) 分类 留美老师带你每日说英文
学英语单词
a. lienalis
accentated contrast
Actinophrys
affine connection
artificial financial markets
aurum vegetabile
basic contention
beetlelike
biased diode
birretta
black mild steel flat head tinmen rivet
bottom loop
brain unit
Bromovalerylurea
cariated
carvable
cheb (eger)
chromodiagnosis
conjugateness
contemptus mundi
deficiency indices
Dilatal
droop birch
dual-axis
Eminentia fossae triangularis
Europort
example based system
expectation for demand changes
feed zone
finished production in current period
fistfights
flavectomy
four groove drill
fuel changing
great inquest of the nation
guarantee of repayment
heigham
hemoglutination
hydrops folliculin
hydroxymethoxymandelic acid
image source
impeller with two side discs
itaconates
jet milling
key input flag
kilobits per second
lead phenolsulfonate
leading variable
Lensvik
low-pressure vacuum pump
malacoid
manugistics
medical response
mitologia
nanocylinder
non-significant anomaly
North Little Rock
not take sides
nut-cracking
Omophronidae
orujo
out of kilter algorithm
overhang echo
oxyphil(e) cell
paltiel
Pecora, C.
Plexus vasculosus
potential scan
rajaputra
ram lift
recommended price
relaxation value
round gauge
sacrificial poet
sagittariidaes
San Hipólito de Voltrega
sausage sandwich
sealing system
sell someone a dummy
single-leaves
solid adsorbent treatment
spamvertises
speed control governor
stearaldchyde
steepest descent line
stoneware shapes
stoop to conquer
Stroppiana
swearing to
synthetases
tabulatory
tall crowfoot
tel-area
temporal lifting
tumims
Tungnafell
upgrowing
USAO
variable expense ratio
vershoks
vulvorectal
zygopteras