先验分布序列

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(410) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Food Aid Distribution Difficult in CAR 粮食援助分配在中非受阻 The World Food Program says it will scale-up its emergency operations in Central African Republic to provide aid to more than one-million people over the next sixmonths. 世界粮

发表于:2018-11-29 / 阅读(159) / 评论(0) 分类 VOA常速英语2013年(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(193) / 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(236) / 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(137) / 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(139) / 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(149) / 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(78) / 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(186) / 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(132) / 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(219) / 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(151) / 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(146) / 评论(0) 分类 Scientific American(五)月

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(141) / 评论(0) 分类 雅思英语

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(110) / 评论(0) 分类 阅读空间

By Laura Adams In this episode Ill discuss a legal way to make early withdrawals from your retirement account without having to pay an early withdrawal penalty. Can You Avoid Early Withdrawal Penalties on Retirement Accounts? When it comes to saving

发表于:2019-02-04 / 阅读(182) / 评论(0) 分类 货币英语

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(154) / 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(119) / 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(91) / 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(132) / 评论(0) 分类 柯南脱口秀
学英语单词
acid alkali poisoning
aggregate trailer
archduke
autogating
badger hat
ball-and-socket head
bar cramp
beam positioning magnet
binding nature
blotting
bretschneiders
bridge connection
bullfist
Casimir forces
chelate paper
cheri
cirrhifolium
Clarkson's disease
club-law
coadventurer
Cocain-delirium
comes to mind
companion stunt
Debye-Sears ultrasonic cell
diaphragm pessary
Djerem(Dyerem)
dun for
eat one's cake and have it too
Ehrenfest's adiabatic law
electrical transcription
Erolzheim
erpeton tentaculatum
eustipes
eye lash
family geoglossaceaes
farhadi
feed disk
formular
Frasnes-lez-Gosselies
fully secured liability
fusoclarite
galmen
gun pit
hacksaw machine
HTTPR
intermediate memory storage
intermediate shock
irrationalists
isosetoclavine
j/s ratio
jourdann
kennon
laser heterodyne measurement
layer of ballast
loan to subsidiaries
lower-episternum
lycium carolinianums
macro-mutation
medium chain triglyceride
microconidiophore
Money market hedge
mutilations
native steel
Nicophin
niter assay
o'nuts
oil lubricator
omphalodisc
operating a productive system
palm grip knob
pathomimic elaiopathy
platform fixed
priority queue
prissinesses
quassiod
removal diffusion method
right-of-way survey
run with the wind
satranji
screws over
semidesert
shrinkage percentage
sigillography
snapping beetle
solution by groups
standing-eyes closed test
subsolifuction
sulfur mine
sunw
symmetry of an equivalence relation
telepolling
thermate agent
to rest on one's arms
triatomine
tripaschal
Tsimlyansk
turning scraps
U-format
westecoateer
wrinkle crease