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(392) / 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(168) / 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(190) / 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(109) / 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(116) / 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(126) / 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(58) / 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(156) / 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(107) / 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(114) / 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(197) / 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(115) / 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(110) / 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(80) / 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(97) / 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(120) / 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(112) / 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(87) / 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(70) / 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(82) / 评论(0) 分类 柯南脱口秀
学英语单词
air-fuel ratio
anacobra
angle measuring instrument
anteriolateral cordotomy
asayita (asaita)
available water supply
Berdaale
boiler plate bending machine
bonehead
bubble memory movement
climbest
cooperative joint venture
cuoco
Cyanidin-3-rutinoside
Dermocarpaceae
Devil's Gorge
didacticity
diesel-powered truck
digestive canal
digital differential analyser
dinotefuran
double-armed
drinkin
dune fixation afforestation
elephantine books
elevated shore line
enrichment meter
epiclast
Epstein apparatus
filipek
find fault in
floating reclaim
forced landings
fuel mixture indicator
gearbox output
Geisel
germany (deutschland)
gin guzzling
Girod furnace
glycinecin
goods turning rack
gouging electrode
Grodziczno
gumen
hermanniella punctulata
hierarchical directory structure
hyaline hyalin
hydraulic shearing device
i-thowen
insufficient disclosure
iron-coke ration
Kings Canyon National Park
laughing gas
linear inversion
lost chains
Manifold, C.
maximum and minimum
merchant seaman
metallized foils
MMULV-RT
motor tester
nearshored
Newhouses
non-radioactive liquid
pay for illness leave
pedestrian mall
pfui
prepurchasing
received and forwarded
relatively invariant measure
right ear
rookling
s-plane of stratigicat
seer hand
shoe repairer
sin-binneds
single-step switch
sosebee
sparsistent
species epithet
standardized function
stanyer
Stone Park
t-shaped complex
telesca
the Sally Army
total design concept
true colour unit
underapplies
uniformly elliptic equation
utilities system
variable phase shifter
vasilieva
vertical transportable retort
violent relaxation
viscoplastic fluid
vranov
waste bunker
when in Rome
whip snakes
YNK