尿素抽提结晶作用

[00:42.52]Listen to Xiaoyan and her friend Anne talking about the party. [01:46.90]Extract 2 Listen and write what you hear. [02:30.00]Extract 3 Answer the questions based on what you know about the party. [03:27.77]Extract 4 Listen to a description

发表于:2018-12-04 / 阅读(58) / 评论(0) 分类 电视大学开放英语

[00:03.06]Extract 1 [00:07.50]Listen to each sentence twice [00:09.85]and use the information it contains to answer the question. [02:38.01]Extract 2 [02:45.68]Listen to the following dialogue twice and answer the questions

发表于:2018-12-11 / 阅读(53) / 评论(0) 分类 电视大学开放英语

[00:38.76]Extract 1 [00:40.95]Answer each question about Tom using the prompts in your book. [00:46.78]1.What did he do last night? He met Tim for dinner. [00:58.71]2.When did he leave school? He left school in 1992. [01:14.75]3.How was his last holi

发表于:2018-12-11 / 阅读(101) / 评论(0) 分类 电视大学开放英语

[00:01.61]Extract 1 [00:04.04]Answer the questions. [00:06.51]1.Where do you get the car washed? I wash it myself. [00:19.65]2.Where does John get his car repaired? He repairs it himself. [00:34.95]3.Where doesn Mark get his hair cut? He cuts it hims

发表于:2018-12-11 / 阅读(134) / 评论(0) 分类 电视大学开放英语

Pet turtles can be unsanitary. But Chinese soft-shelled turtles really up the ante on distasteful behavior. They perform a variation on urinationthrough their mouths. Most land-based vertebrates produce urine to get rid of water-soluble toxic waste,

发表于:2018-12-24 / 阅读(81) / 评论(0) 分类 Scientific American(十)月

Why Honey Turns Hard If a little honey drizzled on a piece of homemade toast or into a cup of tea is how you like to start the day, youre not alone. One drawback to honey, though, is that after sitting too long on the shelf, it crystallizes and that

发表于:2018-12-27 / 阅读(75) / 评论(0) 分类 英语时差8,16

[00:03.16]Extract 1 Answer the questions using the prompts in your book. [01:19.64]Extract 2 Answer usning the cues in your book. [01:48.22]Extract 3 Answer the following questions. [02:56.00]Extract 4 Susan leaves a message for Tracey Smith. [03:43.

发表于:2018-12-29 / 阅读(106) / 评论(0) 分类 电视大学开放英语

[00:02.32]Extract 1 [00:05.57]David talks on the phone to Max in Paris. [03:25.12]Extract 2 Form questions using the prompts in your book and in this extract. [04:29.88]Extract 3 The conference in Paris. [05:40.62]Extract 4 Answer the questions follo

发表于:2018-12-29 / 阅读(117) / 评论(0) 分类 电视大学开放英语

[00:43.02]Extract 1 [00:45.94]Make questions using the prompts in your book. [01:49.62]Extract 2 [01:52.96]Listen to the questions and answer them for yourself using short answers. [02:00.61]Use the pause button. [03:56.06]Extract 3 Xiaoyan talks to

发表于:2018-12-29 / 阅读(138) / 评论(0) 分类 电视大学开放英语

[00:02.40]Extaract 1 Xiaoyan and David meet at work. [01:12.95]Extract 2 Give advice using the cues in your book. [02:40.66]Extract 3 Xiaoyan phones a guesthouse to make a reservation. [03:50.20]Extract 4 Answer the questions as if you are Paul. [04:

发表于:2018-12-29 / 阅读(122) / 评论(0) 分类 电视大学开放英语

[00:02.66]Extract 1 Answer the questions using the cues in your book. [01:19.83]Extract 2 Answer the questions using the information in your book. [02:49.30]Extract 3 Listen to part of Polly's job interview. [04:12.44]Extract 4 Respond to the questio

发表于:2018-12-29 / 阅读(113) / 评论(0) 分类 电视大学开放英语

By Jessica Berman Washington 23 October 2007 Researchers say that an extract made from broccoli sprouts may prevent skin cancer when applied directly to the skin. VOA's Jessica Berman reports scientists say broccoli contains a chemical that stimulate

发表于:2019-01-03 / 阅读(70) / 评论(0) 分类 2007年VOA常速英语(十月)

'Cash Mob' Phenomenon Supports Local Business What do you get when you mix a store's need for more business with enthusiastic local consumers? A cash mob. Organized through social media, the phenomenon is based on the concept of a flash mob, where la

发表于:2019-01-11 / 阅读(70) / 评论(0) 分类 VOA标准英语2013年(五月)

核心句型: The design would stop a clock. 这个设计奇丑无比。 stop a clock 直译过来就是:让钟停止走动。这是一种十分诙谐幽默的说法,其正确意思是:样子难看、土里土气。因此,当美国人说The

发表于:2019-01-26 / 阅读(141) / 评论(0) 分类 轻松日记商务职场篇

Science and technology 科学技术 Reptilian micturition 爬行动物的排尿 That's a relief 可算是方便了 Softshell turtles urinate through their mouths 鳖类通过其嘴部小便 WHY did the turtle stick its head in a bucket? 为什么乌龟

发表于:2019-02-03 / 阅读(131) / 评论(0) 分类 经济学人科技系列

MADRID, Oct. 27 (Xinhua) -- Real Madrid coach Jose Mourinho responded ironically to questions over who will play at left back for his side on their visit to Mallorca on Sunday night. Real Madrid are still without full backs Alvaro Arbeloa, Marcelo an

发表于:2019-02-04 / 阅读(332) / 评论(0) 分类 英语新闻

A bureaucrat was hiking when he came upon a shepherd tending a large flock. The bureaucrat took a fancy to the sheep and asked the shepherd, If I can guess how many there are, may I have one? The shepherd thought it unlikely the man would guess the e

发表于:2019-02-07 / 阅读(92) / 评论(0) 分类 趣味英语

今天我们要学的词是bureaucracy。 Bureaucracy, 官僚。美国国防部长盖茨上周末公开对军方庞大的官僚体制提出批评。 Gates took aim at what he called a bloated bureaucracy, 他还保证要亲自过问,精简军方的官

发表于:2019-02-08 / 阅读(72) / 评论(0) 分类 英语单词荟萃

Volkswagen has devised a new catalytic converter that could fix the majority of the cars in the US affected by the diesel emissions scandal, as details emerge of its attempts to satisfy regulators. 大众汽车(Volkswagen)设计出一种新的催化转

发表于:2019-02-08 / 阅读(113) / 评论(0) 分类 英语新闻

Conflict resolution marked the career of former Finnish president Martti Ahtisaari who has received this year's Nobel Peace Prize for his efforts to secure peace in various regions of the world. In this report from Washington, Senior Correspondent A

发表于:2019-02-12 / 阅读(86) / 评论(0) 分类 VOA标准英语2008年(十月)
学英语单词
adjoined
alfon
all-day sucker
archeopterid
arrecting
autopilot control
business voluntary winding-up
calumetite
cape kafferbooms
Carlism
caudifolius
circle skirts
control pinion
cut out step
diabolarchy
dihydroorotate
dimense
do justice
dolorsite
dust spectacles
dynamic error debug
Ebal
entrez
Eria japonica
fiesty
flood risk forecasting system
Froidmont
gasfittings
gasoline cock
Great Dark Spot
hergert
herpes simplex of penis
hexapeptide
hipification
horizontal bracket
Huambo, Prov.do
Huchard's treatment
inspection of engineering quality
interference prism
intestinal dialysis
jebel toubkal
jewelry dealers
lecht
left-component
leges barbarorum
lonchar
luminophor(e)
madder red
marine tertiary industry
mechanical comminution
microhyla heymonsi
microstrobilus
mottle-leaf
natural regulation
non-photosynthetic organ
Norra Dellen
oil grade
out-shining
overtimer
penloaf
Philadelphia lawyers
pizzornoes
plasmacytoma
plug-and-play
pot incubation test properly
practical unit
principle of mediocrity
psychopaths
punched card feeding
pushermen
Qal'eh-ye Seyyed
Rathke's cysts
re-allocating
release time of an on-delay relay
replace writing
rigou
rotator crusher
S-ethylglutathione
Savathe cycle
scoopet
scotochromogens
ship borne expendable bathythermograph
siphone barograph
spoonerism
stibatian
subsidiary cable
sultane
sustain the part of
tactile controlled hand
terrigenous organic substance
tetrachlorodiphenylethane
throat lash
Tisco alloy
tonalists
track receiving coil
traffic link
union operation
water of coordination
well-assembled
wet blasting
wiracochas
Wontae-dong