[计] 柯尔莫戈洛夫随机序列

Editors note: This is the third episode of four-part series on verb tenses. Be sure to listen to part one and part two first. For VOA Learning English, this is Everyday Grammar. Today we are going to talk about the perfect verb tenses. Perfect tenses

发表于:2018-11-27 / 阅读(521) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Section A [00:01.23]1. M: I haven't decided which subject to major in [00:04.96]physics or chemistry. [00:07.76]W: It isn't easy to choose,is it? [00:10.21]Q: What does the woman mean? [00:13.87]2. W: The map shows that this street goes downtown. [00

发表于:2018-11-29 / 阅读(305) / 评论(0) 分类 决胜四级听力必备

Section A [00:01.54]1. M: My grandpa died in 1978. I was 18 years then. [00:08.20]W: That means he would be 76 if he were alive. [00:11.49]Q: How old was his grandpa when he was dead? [00:14.45]2. M: Why are you going so fast? [00:17.53]Where are you

发表于:2018-12-01 / 阅读(350) / 评论(0) 分类 决胜六级英语听力

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Its the time of year to take a look backand thats just what the journal Science did as they listed their most important breakthroughs of 2008. At the v

发表于:2018-12-02 / 阅读(217) / 评论(0) 分类 Scientific American(十二)月

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(210) / 评论(0) 分类 数学英语

[ti:UNIT 7 Enjoy Your Hobby Lesson 56:Unit Review] [0:01.051]Unit 7 [0:02.631]Enjoy Your Hobby [0:04.894]Lesson 56: [0:06.943]Unit Review [0:08.907]I. [0:10.231]Building Your Vocabulary [0:12.963]A. [0:14.500]Fill in each blank with the proper word o

发表于:2018-12-10 / 阅读(212) / 评论(0) 分类 河北教育初中英语(初中起点)八年级上

发表于:2018-12-12 / 阅读(150) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The human genome was sequenced, and in the process of moving that forward the technology that was developed was incredible. And because of their efforts in human genome,

发表于:2018-12-24 / 阅读(268) / 评论(0) 分类 Scientific American(十)月

Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in

发表于:2018-12-27 / 阅读(204) / 评论(0) 分类 2014年ESL之商务英语

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(304) / 评论(0) 分类 数学英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(243) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Robin Williams thought that the platypus was cobbled together by an inebriated deity: Lets take a beaver. Lets put on a ducks bill. Now we know how weird the platypus is

发表于:2019-01-08 / 阅读(220) / 评论(0) 分类 Scientific American(五)月

But our brains' primate subdivision will see the contrasting colors without blending. 但视觉皮质中演化的分支会区辨颜色对比而不会将他们混合。 With these two interpretations happening at once, 当两种视觉处理方式同时发

发表于:2019-01-17 / 阅读(143) / 评论(0) 分类 TED演讲教育篇

由于传统的英语教学里面不涉及小作文的内容,所以雅思写作的小作文部分一直是很多同学的软肋。不会说名称,不知如何分析对比,即使有思路却不知如何表达,成为很多同学的问题。下面

发表于:2019-01-18 / 阅读(228) / 评论(0) 分类 雅思英语

Science and Technology Intelligence testing Who are you calling bird-brained? 科技 智力测试 叫谁是笨蛋呢? An attempt is being made to devise a universal intelligence test 人类正尝试设计一种通用的智力测验 WHAT is the IQ o

发表于:2019-01-26 / 阅读(169) / 评论(0) 分类 经济学人科技系列

古埃及金字塔是奴隶制帝王的陵墓,最宏大的当为吉萨三座大金字塔。塔基呈方形,每边长230米,高146米,用230余万块巨石(每块平均重达2.5吨)垒成,国王墓室用一块400吨重的石板垒成。整体规

发表于:2019-02-01 / 阅读(176) / 评论(0) 分类 阅读空间

BEIJING, Aug. 22 (Xinhuanet) -- Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday. An international team of resear

发表于:2019-02-08 / 阅读(235) / 评论(0) 分类 英语新闻

Listen to the schedule of a business trip. Fill in numbers l-8 to point out the sequence of the schedule. I'm leaving for Milan on the 7th of June. l'II arrive there on the 8th evening at about 7:OOpm. Then, l'II take a shuttle bus to the hotel. On t

发表于:2019-02-17 / 阅读(179) / 评论(0) 分类 英语听力练习题

Listen to the dialogues and write the correct sequence of l-6 as mentioned in the dialogues. A:How do I search books from the computer? B:First, key in your PIN number. Then, it goes to the Library's Homepage. Then, you can choose any way you want to

发表于:2019-02-17 / 阅读(160) / 评论(0) 分类 英语听力练习题

Thank you for being here,Fareed.Nice to have you on the show. 多谢你抽空前来 法里德 很高兴你能来上节目 Let's get started first with your background.I do think I know a lot about you. 首先聊聊你的背景 我觉得我很了解你

发表于:2019-02-23 / 阅读(218) / 评论(0) 分类 柯南脱口秀
学英语单词
abiata hayk
adductory
advanced manufacturing
allosteric model
allostimulated
allowance for sedimentation
Anemone pulsatilla L.
array sequential allocation
auditory apparatuss
be concerned at
be worth
beatnikss
bleke
break sb.'s spirit
bustlings
Changanacheri
closed extension
comparison bridge
crispation number
deammoniated
departments of economy
deterministic dynamic programming
developing flow
dichlorodivinylchloroarsine
differential gauge
dithioctamide
drag lock
dufort
esophagostomy
event sensing card
fibroglandular
Fiske's method
foldome
foreign trade mission
fossorial foot
gentianase
greenlawn
Gullstrand
hanging sash
high speed oscillograph
hnatyshyn
Ichenhausen
industrial assurance
inventory gains or losses
jailin
Kent Grp.
kobs
matching box
maurizios
meaningful memory
mesomitosis
micro-movement control system
minority business
misplanted
modal efficient mass
multiple chamber lock
muscadelle
Nagorny
nodi lymphatici iliaci communes
Norman-French
olethreutid
on the leg
online performance
opisthokont
optical encoder
orifice flow meter
page setup
Penntuss
penthe
Petit-Bourg
petrocurrency
photoelectric red threshold
Pinglish
planting in notches
pussyfooting
reactive fiber
red skate
roscherite
RSoP
sacrifice of cargo
seismic surveillance
selectoforming
service ammunition
shape category
SHWT
skinmags
soil thermal conduction
spike mike
stern bossing
take means
theory of economic policy
TLSO
tough-skinned
unappealed
undersaturations
Veratrum californicum
water drive reservoir
waterflow recorder
wonkier
xenosporium berkeleyi
zanoga