[计] 伪随机序列发生器

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(412) / 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(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(237) / 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(139) / 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(150) / 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(80) / 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(189) / 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(220) / 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(148) / 评论(0) 分类 Scientific American(五)月

Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t

发表于:2019-01-12 / 阅读(148) / 评论(0) 分类 2015年VOA慢速英语(七)月

Random numbers are hugely important for modern computing. They're used to encrypt credit card numbers and emails. To inject randomness into online gaming. And to simulate super complex phenomena, like protein folding or nuclear fission. But here's th

发表于:2019-01-20 / 阅读(114) / 评论(0) 分类 2016年Scientific American(九)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(111) / 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(156) / 评论(0) 分类 英语新闻

Grading of Final Exams 期末考试的打分 Here is a list of the ways professors here at the American University grade their final exams. 下面是美国大学的教授们给期末考试打分的方式。 Dept of Statistics 统计学系 All grades

发表于:2019-02-17 / 阅读(100) / 评论(0) 分类 英语小达人

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(120) / 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(92) / 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(133) / 评论(0) 分类 柯南脱口秀
学英语单词
5-HTNA
acetphenetidin
advection propagation
adverbial adjunct
aperture equivalent
assor(ta)tive mating
at the summit of
atmosperic discharge coil
benzazocines
Billie Holiday
blow tomahawks
budker accelerator
burseran
Caianda
Camellia tunganica
caspian berring
cindy
cleaner cartridge
coherence length
colopholic acid
column dead
community-levels
components of cost
computer software copyright
control optimization program
coroboree
Corydalis kiautschouensis
crook-neck
cubic elasticity
decimal picture data
Dehiwala-Mount Lavinia
desugared egg
deuce it
dikaryon (maire 1902)
electric steam generator
electrical relays
endoglycanase
expenditures on new plant and equipment
first-and-only
fishwiches
fitup
florikin
fouling
George Michael Cohan
hinging posts
integrated tracking system
intestinal schistosomiasis
ionic addition reaction
Jasminum brevidentatum
kenansville
lily-footed
linear thrust
lipoma of larynx
liquid-displacement meter
make a rise
Mansuyia
marginal ramus
materia subtilis
mentch
mesocortical pathway
micromodule stable
Microspira
mil domain
mimela testaceoviridis blanchard
mosaic mimic board
mount catherine
networktechnique
nicotia
optimum number of turns
oxidative cleavage
paromphalocele
pentapetalose
pharygeal syphilis
polum
Port Lavaca
prairie school
preliminary shock
protein molecule
puddingtons
quartz spectrograph
radix aconiti
rhodanthe manglesiis
Salvia japonica Thunb.
saylac (zeila)
scatteration
Siebert furnace
sleeve guide
soil thermal regime
spacing boss(of outer shell) (
speech spectra
spinneret holder
surge impedance
tendron
Towraghondī
us agent
utilitylike
vehicle spring
vipers
washing solution
waveform space
Wigner nuclei
wonkish