[数] 连续函数序列

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(525) / 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(306) / 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(356) / 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(219) / 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(213) / 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(216) / 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(151) / 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(269) / 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(205) / 评论(0) 分类 2014年ESL之商务英语

What Is Money and What Are Its Functions? Money is something you've been familiar with throughout your life. In fact, you may already consider yourself an expert on the subject. You regularly use money to measure the value of things you own. You also

发表于:2019-01-02 / 阅读(191) / 评论(0) 分类 双语有声阅读

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(309) / 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(248) / 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(228) / 评论(0) 分类 Scientific American(五)月

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(179) / 评论(0) 分类 阅读空间

公证书 Certificate (90)Lu Zi, No. 1130 This is to certificate that Mr. Zhao Qiangwen holds a diploma issued to him in July, 1980 by Shandong University (Diploma No. 064)and that we have carefully checked the seal of the University and the signatur

发表于:2019-02-04 / 阅读(191) / 评论(0) 分类 求职英语

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(242) / 评论(0) 分类 英语新闻

Chinese Premier Li Keqiang said the Chinese government will double efforts to streamline administration, transform functions and boost efficiency. The aim is to spur economic vitality and attract overseas investment. He made the remarks at a national

发表于:2019-02-13 / 阅读(193) / 评论(0) 分类 cctv9英语新闻2016年

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(220) / 评论(0) 分类 柯南脱口秀
学英语单词
almost periodic compactification
ambriz
ashcan schools
athreptic
belt road
bestamp
biofortification
biographical dictionary
block independence
bondolfi
brokeasses
bucking-out system
BVDs
cephalic protection
charging side
Christensen Glacier
cicada-like
claimriglth insurance
color-shifting
Comastoma cyananthiflorum
commutator mica material
convective chronoamperometry
cordyceps nutans pat
cordylosomides tuberifer
creepeth
crisis-riddens
ctenostylids
custom magnification
depoliticized
detrital phase
diffuse hyperplastic arteriosclerosis
direct object
discerptions
disinterring
diskoscopy
disturbance signal
Divasidum
duality of enterprise management
eastern grey squirrel
EGA
eigenfunction orbital
embroidery lace
engine parts
experimental station
extracurrent
failed element detection
fastabend
filling motion trip
finishing grazing
flight chain
fluid silicone rubber
foofooraw
gammagard
genus ichthyostegas
gravure etching process
hamartite
high-voltage end
interpretation of data
Jacquard loom
jewelle
joint nonparametric confidence interval
leveraged investment
localization of distribution
magnetic gradiometer
Mantinean
muggli
naava
nazzaro
not in a position to
nutrient ratio
overbreak of opening
parakeratosis variegata
peer - to - peer network
peeseweep
perchloropropane
percussive open-well machine
periastra
ratiograph
recurring decimals
routine ammunition maintenance
sacral spot
savageau
self-belted
sergeancies
standardized house
stdiostream
summit eruption
superheavy nucleus
toe rings
trismegist
unsmeltable
vax dbms
ventilation modulus
Venushair
virgin voyage
visual threshould
water sport
wharf master
whitcomb
work limit
work-ready