伪噪声序列(pseudo-noise sequence)

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(549) / 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(334) / 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(377) / 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(235) / 评论(0) 分类 Scientific American(十二)月

Janpnese weddings In the past, most Japanese participated in various Shintoist or Buddhist ceremonies, weddings funerals Buddhist. In recent times, the trend has been towards Christian and non-denomin

发表于:2018-12-07 / 阅读(529) / 评论(0) 分类 七田真超右脑英语学习法

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(237) / 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(238) / 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(168) / 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(292) / 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(228) / 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(321) / 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(263) / 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(247) / 评论(0) 分类 Scientific American(五)月

一些听众朋友反应本期习题很难,希望能得到详细的讲解,那么今天就对第12课的习题讲解。 习题一:Please complete the following sentences. 1 我希望能与他促膝相谈,可是当我到他家时找不到他,我

发表于:2019-01-23 / 阅读(226) / 评论(0) 分类 英语早间课堂

【课堂热身】 首先,let's have a review。在第十二课第一讲中我们讲到了let one's face fall 是某人自己使自己失望。 【今日课题详解】 那么现在我想说某人使得别人失望令别人大失所望,还是要用

发表于:2019-01-23 / 阅读(183) / 评论(0) 分类 英语早间课堂

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(194) / 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(262) / 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(191) / 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(174) / 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(246) / 评论(0) 分类 柯南脱口秀
学英语单词
2-Chlorobenzaldehyde
accommodateness
acute suppurative nephritis
aortic compressor
arc into time unit conversion
arm twisting
audible ringing signal
automatic switching network
axiolite
azel mounting
Barghūth, Sabkhat al
be under discussion
berlevaag (bearalvahki)
bid negotiation
black-lead
broad heading
Brundish
cerebral atherosclerosis
chaetoceros danicus
chobanian
conversion of heat into power
Corydalis govaniana
Corydalis lathyrophylla
counterstatements
covered street-way
desertification
Desire Under the Elms
diffuse reffection
diploneis coffaeiformis
distortionless power out-put
distribution of social labor
double end profiler
draw a lottery
eiloid
emplastra in massa
ferentz
finished glass
gearedup
gendle
gigantisms
graphic character set
hatchel
Have the Hots
historical museum
Hsi-hseng
lug dowel
macropera
magneto-dynamo
monadological
morning glory column
mortgage condition
moteliers
myyelosarcoma
Nawaikona
nprm
numbness of tongue
orange skin
orchideas
organo-tin compound
overhead waiting hall
parodic
parovarium
parris i.
periodic payment with present value of l yuan
phenol laminate
polycrystalline metal whisker
potas
pranksterish
profiles
proportional factor
protein sparing action
pseudolymphoid tissue
pulse-jet
Pyridinones
pyxine sorediata
quiet car
radio terminal assembly
raking trestle
Raman scattering laser radar
reaming-iron
repentigny
reprofessionalizes
repurchase intention
riser assembly
rolling in it
Sahlenburg
Sedaraupin
Shiawassee County
ship-to location
side bumper
smerwick har.
spic-o-rama
square dancers
strophocephaly
take a grip on oneself
talkeetna
twin boundary surface
un-Americanness
war-horn
wedding registry
Zaural'skoye Plato
zidovudine