[遗] 突变率下降

Here's the news at 11:30. Thousands of people have marched through the centre of Corby in Northamptonshire to protest against plans to close the steel works, the town's major employer. The marchers de

发表于:2018-12-03 / 阅读(176) / 评论(0) 分类 英语解说豆知识2009年

What is Bluetooth? Bluetooth is a universal radio interface in the 2.45GHz frequency band that enables portable electronic devices to connect and communicate wirelessly via short-range, ad hoc netwo

发表于:2018-12-08 / 阅读(190) / 评论(0) 分类 新概念英语第一册Flash第2版

UNIT 4 Text A PRE-READING TASK Exercise 1 Before reading the passage, look at these questions. Then try to find the answers as you read it. 1. Where is the Bermuda Triangle located? 2. What happened t

发表于:2018-12-11 / 阅读(254) / 评论(0) 分类 实用英语综合教程

What's the frequency kenneth is your benzedrine Uh huh I was braindead locked out numb not up to speed I thought I'd pegged you an idiot's dream Tunnelvision from the outsider's screen I never understood the frequency Uh huh You wore our expectations

发表于:2018-12-13 / 阅读(236) / 评论(0) 分类 Friends 老友记全10季英语插曲

Economics Report - A Closer Look at High-Frequency Trading 经济报道 - 近距离审视股票市场高频交易 This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 Once, stocks were traded through the

发表于:2018-12-16 / 阅读(208) / 评论(0) 分类 2011年VOA慢速英语(十)月

This Scientific Americans 60-Second Science. I am Karen Hopkin. This will just take a minute. They say that older folks benefit from spending time with young people. And thats not just an excuse to stick grandma at the kids table at Thanksgiving. Now

发表于:2018-12-24 / 阅读(159) / 评论(0) 分类 Scientific American(五)月

By Jeffrey Young Americans crossing borders groan in dismay as they exchange their dollars for less and less in other currencies. Holidays in Europe, for instance, that once seemed reasonably priced h

发表于:2019-01-03 / 阅读(203) / 评论(0) 分类 VOA2004(下)--世界经济

This is scientific American's 60-Second Science, I'm Karen Hopkin, this'll just take a minute. If theres anything better than a fresh, ripe, tomato, its a gigantic fresh, ripe tomato. And thanks to a couple of mutations, thats exactly what we all enj

发表于:2019-01-08 / 阅读(186) / 评论(0) 分类 Scientific American(五)月

[ti:UNIT 7 Sports and Good Health Lesson56] [0:00.886]Unit 7 [0:03.266]Sports and Good Healthy [0:06.443]Lesson 56 [0:09.320]Unit Review [0:11.461]Ⅰ. [0:12.879]Building Your Vocabulary [0:15.624]A. [0:16.807]Fill in the blank with the proper word.

发表于:2019-01-09 / 阅读(230) / 评论(0) 分类 河北教育初中英语(初中起点)七年级下册

Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they

发表于:2019-01-11 / 阅读(236) / 评论(0) 分类 英语新闻

Robot Can Help With Farm Work 可以帮助农民干活的机器人 In the American state of Idaho, a robot moves between lines of fruit trees and grapevines. It is doing farm work. Called IdaBot, this robot is a prototype, or model. An engineering te

发表于:2019-01-12 / 阅读(494) / 评论(0) 分类 2016年VOA慢速英语(十一)月

High Frequency Traders Under Scrutiny 美司法部调查高频交易 The U. S. Justice Department is investigating the relationship between high frequency trading firms and major exchanges -- and regulators in Washington and the state of New York are

发表于:2019-01-14 / 阅读(213) / 评论(0) 分类 VOA标准英语2014年(四月)

Well, I was born with a rare visual condition called achromatopsia, which is total color blindness, 我出生在一个色彩极少的世界,世界只有明暗之分,这叫做全色盲 so I've never seen color, 所以我不知道什么是颜色, a

发表于:2019-01-18 / 阅读(169) / 评论(0) 分类 TED演讲国际问题篇

还记得孙燕姿那首红遍大江南北的《绿光》吗?翻越过前面山顶、层层白云,绿光在哪里?不知道有多少人跟小编一样,以为歌里的绿光只是对幸福的比喻。而其实在现实中,绿光是真实存在

发表于:2019-01-28 / 阅读(181) / 评论(0) 分类 实用英语

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-02 / 阅读(206) / 评论(0) 分类 英语新闻

There are many ways to express the frequency of events. Here are just a few. 你可以用许多方式来表达事情发生的频率,以下仅为其中一些。 1. a few times 1.几次 2. all the time 2.总是 3. almost always 3.几乎总是 4. almo

发表于:2019-02-03 / 阅读(213) / 评论(0) 分类 实用英语

By Paula Wolfson Washington 11 December 2007 A new study shows American teenagers are getting the message about the dangers of illegal drugs. VOA's Paula Wolfson reports the government-funded survey shows a significant overall decline in illicit drug

发表于:2019-02-05 / 阅读(141) / 评论(0) 分类 VOA常速英语2007年(十二月)

By 2050, small fish could dominate(控制支配) the oceans because of the rapid decline of larger, predator fish. In a new report, the U.N. Food and Agriculture Organization finds that one-third of the worlds fisheries are overexploited, depleted or

发表于:2019-02-08 / 阅读(242) / 评论(0) 分类 英语新闻

今天我们要学的词是decline。 Decline, 拒绝。 The company declined to offer any specifics about its layoff plan, 这家公司拒绝透露裁员计划的有关细节。 The source declined to be identified because of the sensitive nature of

发表于:2019-02-16 / 阅读(134) / 评论(0) 分类 英语每日一词

视频在英语中常表示为: video frequency (V.F.); vision frequency; visual frequency; video 例句: 1. 谁说视频游戏不能被赋予教育意义? Who says video games aren't educational? 2. 选择面广而且视频质量高。 High qualit

发表于:2019-02-18 / 阅读(186) / 评论(0) 分类 英语口语
学英语单词
-tum-
ababy
acute pulpitis
amylbiguanide
angklungs
Armadillidium
art muslin
asymmetry effect
autarkist
bad eggs
bar mining
blast-heating apparatus
bosanska gradiska
calci-penia
capitulum of rib
cavals
central-committee
centrifugal timer
cheek grooves
Cho Chu
cleft of wound
clunk
collegiate bench
company image
counterfort (retaining) wall
cugat
cumulate
dactylocostal rhinoplasty
depressants
directly driven motor sheep shearer
DIRLAUTH
downpipe
drum barrel
English velvet
EPROS
equationism
fablet
fallen by the wayside
five-minute oscillation
fleeceless
fluorinator
fluted cylinder
galvanized MS countersunk head machine screw
gametogenous
gas multiplication
gib head taper stock key
go professional
heteroideous
implement system
import trade
incoming operator
ingustable
inlet design
integrally
interior ballistics
iseiconic
isorthoclase (iso-orthoclasc)
kiduls
kollik
leak test by filling water
leverman
lock mode
maguey fibre
makinoi
maximum-continuous revolutions
moellemen
musculus pronator
Nawākot
negative politzerization
nitrite ion
obol
organic cyanide
orthosilicates
outside admission piston valve
past tenses
polluted agricultural land
proportions
Prunus cerasoides
reverse-flow methods
RN
salpingid
Salsola soda
scribbets
secondary diagonals
shakuntala
single budget
single-beam crane
slougish
small-to
social value
spur-galled
static dispatches
strand plant
subluxed
sunderance
test of accelerating
tic tac toe
underlying retention
Unknown device
weight hook
wolfsteins
xylo-marimbas