恒等置换群

(woman) You may remember that a few weeks ago we discussed the question of what photography is. Is it art, or is it a method of reproducing images? Do photographs belong in museums or just in our homes? Today I want to talk about a person who tried

发表于:2018-12-05 / 阅读(83) / 评论(0) 分类 托福听力短文

[ti:UNIT 2 DNA Lesson 10 What Is DNA?] [0:02.300]UNIT 2 第二单元 [0:03.936]DNA [0:06.098]Lesson 10: 第10课: [0:07.918]What Is DNA? 什么是DNA? [0:10.668]THINK ABOUT IT! 想一想! [0:12.400] Do you and the students near you look the sam

发表于:2018-12-10 / 阅读(143) / 评论(0) 分类 河北教育初中英语(初中起点)九年级下

[ti:UNIT 2 DNA Lesson 15 Cloning Questions] [0:01.154]UNIT 2 第二单元 [0:02.876]DNA [0:05.935]Lesson 15: 第15课: [0:07.825]Cloning Questions 克隆问题 [0:11.631]To: 至: [0:12.419]jenny@compmail.ca [0:15.357]From: 来自: [0:16.233]Li-

发表于:2018-12-10 / 阅读(215) / 评论(0) 分类 河北教育初中英语(初中起点)九年级下

[ti:UNIT 2 DNA Lesson 13 Clones Are the Same] [0:00.788]UNIT 2 第二单元 [0:02.442]DNA [0:05.530]Lesson 13: 第13课: [0:07.106]Clones Are the Same 克隆人是一样的 [0:09.703]THINK ABOUT IT! 想一想! [0:11.155] You have a pet that you l

发表于:2018-12-10 / 阅读(182) / 评论(0) 分类 河北教育初中英语(初中起点)九年级下

By Nancy Steinbach Broadcast: October 29, 2003 This is Faith Lapidus with the VOA Special English Health Report. Some estimates say that one in as many as eighty-thousand of all births results in two

发表于:2018-12-15 / 阅读(243) / 评论(0) 分类 VOA2003(下)-环境与健康

[00:03.24]Nature and Nurture [00:07.63]Part Two [00:10.84]Listening-Centered Activities [00:15.16]Listening I [00:19.40]Exercise 1 [00:24.16]Directions: [00:27.58]Listen to the passage and answer the following questions. [00:33.80]Although twins have

发表于:2018-12-18 / 阅读(128) / 评论(0) 分类 新编大学英语听力浙大版

UNIT ELEVEN Part One Warm Up Dialogue 1 下面是典型的家庭主妇式的闲谈。 A: Are these your ⑴triplets? They’re ⑵beautiful! I’ve seen other babies who were nothing but skin and bone

发表于:2018-12-24 / 阅读(134) / 评论(0) 分类 4+1听力口语MP3

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 dream [ dri:m ] His dream of being a d

发表于:2018-12-30 / 阅读(77) / 评论(0) 分类 每日攻克5词

坚持不懈,直到成功。 我们每天的奋斗就像对参天大树的一次砍击,头几刀可能了无痕迹。每一击看似微不足道,然而,累积起来,巨树终会倒下。这恰

发表于:2019-01-03 / 阅读(139) / 评论(0) 分类 四六级词汇与结构练习

Katie Couric: For nearly 3 years, Matt and Christine Roe saw double with their identical twin daughters, and when doctors told them Christine was pregnant again, and this time with triplets, they simp

发表于:2019-01-06 / 阅读(70) / 评论(0) 分类 访谈录

This is Scientific Americans 60 Second Science, I am Rose Eveleth. Got a minute? Sound and touch may seem completely separate, except possibly when playing the game Operation. But it turns out that the two senses are actually quite entwined: a new st

发表于:2019-01-08 / 阅读(70) / 评论(0) 分类 Scientific American(五)月

As StoryCorps travels the country, it's helping Americans interview some of the most important people in their lives. Today, two women who can't imagine life without each other. Hi, I'm Janice Morris and Im Caroline Morris Satchell and we're identica

发表于:2019-01-08 / 阅读(132) / 评论(0) 分类 2006年NPR美国国家公共电台

[00:01.89]Unit 24 Society [00:05.41]2 Exercise 2 Listen to Thomas More's story [00:09.34]about Utopia.Check your answers to Exercise 1. [00:18.71]I was in Bruges on business [00:20.48]when I met this very interesting man. [00:22.62]He had travelled f

发表于:2019-01-10 / 阅读(131) / 评论(0) 分类 北师大版高中英语模块8(选修)

Science and technology 科学技术 The genetics of politics 政治遗传学 Body politic 人体政治 Slowly, and in some quarters grudgingly, the influence of genes in shaping political outlook and behaviour is being recognized 在某些方面,塑造

发表于:2019-01-28 / 阅读(70) / 评论(0) 分类 经济学人科技系列

Ever wonder what would happen if you stopped working out? A new study on identical twins published in th journal Medicine Science in Sports Exercise explores exactly that, and the results are dramatic. 想知道停止锻炼后会发生什么吗?一项

发表于:2019-02-01 / 阅读(135) / 评论(0) 分类 阅读空间

自信才能学习好

发表于:2019-02-05 / 阅读(54) / 评论(0) 分类 英语学习方法

identical adj.同一的, 同样的 解析:We are identical in our views of what should be done. 我们对于我们应该如何应付的意见是一致的。 These two designs are almost identical.这两

发表于:2019-02-06 / 阅读(63) / 评论(0) 分类 考研英语

Here is a photo of successful people: Successful people enjoy peace even through difficult circumstances. Rather than complaining about the troubles they meet, they adapt and enjoy life. Successful people like themselves. They are glad for their own

发表于:2019-02-19 / 阅读(56) / 评论(0) 分类 英语美文

神探夏洛克第一季第一集_16 我们在哪? Where are we? 你熟悉伦敦的大街小巷 你知道这是哪 You know every street in London. You know exactly where we are. 罗兰克尔专科学校 Roland-Kerr Further Education College. 为什么

发表于:2019-03-16 / 阅读(229) / 评论(0) 分类 神探夏洛克第一季

What Makes Beauty So Appealing? 是什么让美如此有吸引力 Every year the entertainment magazine People publishes a list of who it considers the most beautiful people in the world. How do the editors choose from the 7 billion people on Earth?

发表于:2019-03-16 / 阅读(1601) / 评论(0) 分类 2015年VOA慢速英语(十)月
学英语单词
anses
armour plating
auricular appendage
automatic servodrive
average-height of stand
bank of a cut
bddas
berkleasmium phyllostachydis
Bertrand's Duopoly Model
biofunctionalized
blennocystitis
bli neder
bootstrap loader microprocessor
brachiocyrtosis
bronzeless blue
bryas
cecal
cedexes
celestial mechanics
centrifugal pump performance
chaetotaxies
channel systems
chatless
chloracetic acit
chorologies
clade
commonalerting protocol
constituens
dislocation pair
dna packing ratio
electronic vibrating-contact regulator
emanuel svedbergs
equational selva
exigua
extendible definition
fabrication procedure
family Muscidae
fatigue parties
ferrojacobsite
field warehouse receipts
flexible blade
gentisin
give-up the ghost
goalless draw
guaira fallss
gynobases
haplomonoecious
hardwood-tar pitch
harvey-jones
horse-ranch
innerved
inopacate
jiaxiang
kadayif
krysha
Luxembourg Stock Exchange
main sail
manufacture order
megaron
Morus notabilis
mouth fork
movement of zone
nila
numerical simulation
oriented core
oxone
Painful Experience
penis pumps
permanent way machine
personnel ralations
preceedings
principal wire bundle
prinias
pseudoencephalitis acnta haemorrhagica superior
radioligand assay
rear parking stop and direction indicator lamps
removing solid capacity
sarcostemma acidums
scientificality
secondary creaming agent
selection command
shearing joint
Shilha
signet-ring cells
smartening
stackelberg model
stand up someone
sulphamerazin
surgical antisepsis
text type
Three Laws of Robotics
throw someone off the trail
tissotiids
Transparent operating system
Transport Index for Radioactive Materials
ucmi
upupas
Vanilla planifolia
variable numbering
villane
wrist assistance
Zogbodomé