接需氧量

Can Oxygen Be Toxic?氧气有毒吗? In order for us to live we must have oxygen, so how can it be bad for us? Today we explain how oxygen can be toxic. 氧气是我们生存所必需的,所以它怎么会对我们有害呢?今天我们来解释为

发表于:2018-12-28 / 阅读(204) / 评论(0) 分类 初学者听力文摘精选

A: Hi. I'd like to return this radio. B: All right. Do you have the receipt? A: Here it is. B: May I ask why you're returning the radio? A: It does not work very well. B: Would you like to exchange it? A: No. I'd just like a refund. B: Certainly. Thi

发表于:2019-01-07 / 阅读(164) / 评论(0) 分类 购物英语对话

A: I want to return this radio. B: Okay. May I see your receipt? A: Certainly. I have it right here. B: What is the problem with the radio? A: It has poor reception. B: Perhaps you'd like a different one? A: No, thank you. A refund is all I want. B:

发表于:2019-01-07 / 阅读(139) / 评论(0) 分类 购物英语对话

A: I need to return this radio. B: That won't be a problem, as long as you have your receipt. A: Here you go. B: What's the problem? A: It doesn't pick up my favorite station. B: I can exchange it for you. A: Thanks, but I just want a refund. B: A re

发表于:2019-01-07 / 阅读(139) / 评论(0) 分类 购物英语对话

A: I'm returning this radio. B: No problem. You do have your receipt, don't you? A: Here you are. B: What seems to be the problem? A: It doesn't have a headphone jack. B: If you'd like, I can show you a different one. A: No, thanks. A refund will be

发表于:2019-01-07 / 阅读(168) / 评论(0) 分类 购物英语对话

This is Scientific American's Sixty-Second Science. I'm Christopher Intagliata. Got the minute? A couple million years ago, mammoths migrated north from Africa to colonize Eurasia. Sometime around then a massive ice age kicked inand it was stay warm

发表于:2019-01-08 / 阅读(184) / 评论(0) 分类 Scientific American(五)月

By Brian Wagner Caracas 07 January 2008 Venezuela has launched a new currency aimed, in part, at curbing high inflation rates in the oil-producing nation. Prices have risen in Venezuela due to soaring consumer demand, creating shortages of milk, suga

发表于:2019-01-09 / 阅读(159) / 评论(0) 分类 VOA标准英语2008年(一月)

Sri Lanka hopes to take advantage of the growing regional demand for information technology graduates. A new training institute opens next year to provide skilled graduates to meet increasing demand. Ron Corben recently visited Colombo and has this

发表于:2019-01-12 / 阅读(188) / 评论(0) 分类 VOA标准英语2008年(九月)

Grab my hand take one step Come with me no regrets 'Coz we'll fly higher than what you can imagine When your heart is mine, anything can happen You're my baby I know you hear this song No need to worry about us You ain't doing nothing wrong Coz latel

发表于:2019-01-14 / 阅读(191) / 评论(0) 分类 节奏布鲁斯

LULU GARCIA-NAVARRO, HOST: It's not every day that scientists announce a new season. But that's what ocean researchers just did on the west coast. They say waters off Oregon, Washington and California now have a whole season when the oxygen level on

发表于:2019-01-17 / 阅读(190) / 评论(0) 分类 2018年NPR美国国家公共电台10月

On June 3rd, a train loaded with highly volatile crude oil derailed just outside the small town of Mosier in Oregons Columbia River Valley. More than 40,000 gallons of crude spilled out of the train. Some burned away in a 14-hour long fire at the sce

发表于:2019-01-17 / 阅读(206) / 评论(0) 分类 2016年Scientific American(十)月

A: Hi. I don't want to keep this radio. B: No problem. May I have your receipt, please? A: Sorry. I could not find it. B: We can't give you a refund without a receipt. A: You know, I bought it at 3 p.m. yesterday. B: I wish I could help you, but it's

发表于:2019-01-20 / 阅读(184) / 评论(0) 分类 购物英语对话

A: Hello. Can I return this radio, please? B: Sure. Do you have your receipt? A: I misplaced it somewhere. B: Unfortunately, I cannot give you a refund without it. A: But I bought it right here just yesterday. B: I'm sorry, but there are no exception

发表于:2019-01-20 / 阅读(167) / 评论(0) 分类 购物英语对话

A: I'd like to return this radio. B: Okay. Do you have your receipt? A: I lost it. B: I am sorry, but you need a receipt for a refund. A: But I purchased it yesterday. B: Perhaps you would like to talk to customer service. A: Well, that's a start, I

发表于:2019-01-20 / 阅读(159) / 评论(0) 分类 购物英语对话

A: I don't want to keep this radio. B: No problem. Let me see your receipt, please. A: Of course. I always keep my receipts. B: Is there a problem with the radio? A: Something is rattling around inside it. B: Would you like a different model? A: No.

发表于:2019-01-20 / 阅读(175) / 评论(0) 分类 购物英语对话

凭借在iTunes和MySpace的成功,来自美国加州的流行女歌手科尔比凯拉特(Colbie Caillat)的处女专辑《Coco》一经发行便得到了很多歌迷的关注。在美国上市第一周,这张《Coco》共售出5万1千张,在本周的Billboard 200专辑榜中跻身前五名. 在没有与唱片公司签订合约之前

发表于:2019-01-23 / 阅读(290) / 评论(0) 分类 音乐咖啡厅

Colbie Caillat-Oxygen I came apart inside a world 我在这个由怒气冲冲的人们组成的 made of angry people 世界里支离破碎 I found a boy who had a dream 直到有一天我遇见一个寻梦的男孩 Making everyone smile 他令他身边

发表于:2019-02-02 / 阅读(142) / 评论(0) 分类 好听的英文歌曲

Oxygen therapy can bring drug-free relief to many Vidushi Sinha | Washington, DC 15 December 2009 A new study shows that breathing pure oxygen can considerably lessen the agony experienced with severe headaches Cluster headaches are described by suff

发表于:2019-02-06 / 阅读(283) / 评论(0) 分类 VOA标准英语2009年(十二月)

Ganso could be out until 2013, says physio RIO DE JANEIRO, Sept. 28 (Xinhua) -- Brazil midfielder Paulo Henrique Ganso could be forced to wait until next year to make his debut for new club Sao Paulo. Ganso, who joined the Brazilian top division outf

发表于:2019-02-06 / 阅读(264) / 评论(0) 分类 英语新闻

I came apart inside a world 我在这个由怒气冲冲的人们组成的 made of angry people 世界里支离破碎 I found a boy who had a dream 直到有一天我遇见一个寻梦的男孩 Making everyone smile 他令他身边的每个人都能展颜

发表于:2019-02-20 / 阅读(171) / 评论(0) 分类 好听的英文歌曲
学英语单词
alcoholic content
ankyla
apparatus for composition analysis
articulus tarsometatarseus i
balanites rouxburghii planch.
barge tractor
Barren Is.
bethanidine
Bodansky unit
bottom sizing
Browning, Elizabeth Barvett
chaetodon ulietensis
chaplins
Christmas-tree pattern
cohort
commissioner of customs
Conver-table
crabworld
Crescens
Daphne jinyunensis
desert wind squall
direct bilge pump suction
direct skin flap
ditylum sol
domestic matter
earthstorms
ecological fallacy
edward calvin kendalls
Enophrys
entrance area
expanding telescope
Fluorandrenolone
freeswinging
frequency monitor
full-width fertilizer distributor
gronphyllum microcarpum scheff
hartell
highly volatile product
hot cathode gas filled rectifier tube
hubbard model
huqin
hypochloride
imported food
incomprehense
INMARSAT CES
ion conductor
isoleucineIle
ju-jus
kapel
l-lysine l-glutamate
lies low
manual switchboard
maritime polar air
meleagros
neuroes
Nishinomiya
nominal voltage of traction substation
non-contact type
nyanda
oligomenorrhoea
ollarius
on center
OXZ
pacinoes
Paleohispanic
paraselena
partial bulkhead
patagium
pizzle rot
plenny
polyoxyvalerate
postischemic papillary muscle dysfunction
Primorsk
pulp bleaching agent
put a question to someone
rare - earth mineral
requisition form
roasted lamb
sales or purchase contract
San Juan Mountains
satellite landing control system
scaramoche
Scots language
servo-type
single-fluid voltaic cell
Sjoutnäs
small battery
smell to heavens
sodium phenolate
sound intensity decay
standard for discharge of pollutants
Stauromedusae
terms of shipment
topper chain
transient phase
Troitsko-Pechorskiy Rayon
turbiniform
warming-up starting
welfare project
well site calibrator
wongwanich
wratches