有效寿命

[00:02.74]Risks [00:04.97]Part Two [00:07.24]Listening-Centered Activities [00:10.66]Listening I [00:13.90]Exercise 1 [00:17.53]Directions: [00:20.27]Listen to the passage and answer the following Yes/Not questions. [00:27.40]The possibility that som

发表于:2018-12-11 / 阅读(80) / 评论(0) 分类 新编大学英语听力浙大版

发表于:2018-12-13 / 阅读(215) / 评论(0) 分类 Wee Sing America

More than two decades of Washington events, unedited and uncut Art Chimes | Washington, DC 26 March 2010 Related Links C-SPAN Video Archive Time again for our Website of the Week, when we showcase interesting and innovative online destinations. This

发表于:2019-01-11 / 阅读(118) / 评论(0) 分类 VOA标准英语2010年(三月)

If we went with Bob's philosophy, I think we'd actually end up with a more efficient immune system. 如果我们同意鲍勃的观点,我们实际上肯定了一种更为高效的免疫系统 And efficiency is always important in the short term. 而且

发表于:2019-01-18 / 阅读(101) / 评论(0) 分类 TED演讲科学篇

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster -- we talk with the author of a book called Spanglish: The Making of a New American Language. RS: Ilan Stavans is a professor of Latin American and Latino Culture at Amherst Colleg

发表于:2019-01-18 / 阅读(121) / 评论(0) 分类 英语单词大师-Word Master

AA: Im Avi Arditti with Rosanne Skirble, and this week on Wordmaster, some whimsy to liven up your vocabulary! RS: Slangman David Burke brings us some words and phrases that, in most cases, have been around a long time, and are just plain fun to say.

发表于:2019-01-18 / 阅读(120) / 评论(0) 分类 英语单词大师-Word Master

Broadcast on Coast to Coast: June 13, 2002 Re-broadcast on VOA News Now: June 16, 2002 AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster, some whimsy to liven up your vocabulary! RS: Slangman David Burke brings us some words and p

发表于:2019-01-25 / 阅读(98) / 评论(0) 分类 词汇大师(Wordmaster)

Long Live Us About a century ago, the average life-span for Americans was about 50 years. Today, the typical American lives for around seventy-eight years. According to a German aging study, the maximum life span in industrialized countries has incre

发表于:2019-01-26 / 阅读(64) / 评论(0) 分类 英语听力文摘 English Digest

A late comeback and a 22 point, 17 rebound effort from DeAndre weren't enough, as the Clippers fall to the Bucks. 迟来的反扑,即便小乔丹贡献22分17个篮板,依旧未能帮助球队免于被雄鹿击败。 Blake Griffin misses the pote

发表于:2019-01-30 / 阅读(119) / 评论(0) 分类 英语新闻

A man of the state of Zheng wanted to buy a pair of shoes.He measured his feet and put the measurement on a chair.When he set out for the market he forgot to bring it along.It was after he had found the pair he wanted that this occurred to him.

发表于:2019-01-30 / 阅读(113) / 评论(0) 分类 趣味英语

AMERICAN MOSAIC - A Night Out at the Movies in WashingtonBy Lawan Davis, Dana Demange and Daniel Kirch Broadcast: Friday, May 05, 2006 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English.

发表于:2019-01-30 / 阅读(129) / 评论(0) 分类 2006年慢速英语(五)月

A chimpanzee known for smoking cigarettes has died at a South African Zoo. The Bloemfontein Zoo says Charlie passed away Tuesday at the age of 52, at least ten years beyond the average life span for chimpanzees. The zoo tried to help Charlie stop smo

发表于:2019-02-05 / 阅读(83) / 评论(0) 分类 阅读空间

B1: How about the view? 观景是怎样呢? A3: Over the tenth floor, you will see the beautiful river view. 高于十楼的单位可以看到河景,相当不错! C2: How about the direc

发表于:2019-02-06 / 阅读(74) / 评论(0) 分类 实用英语

摇滚:Orianthi - According To You 相关介绍 :作为迈克尔?杰克逊最新的现场吉他手,Orianthi年纪尚轻却已经拥有相当多的吉他秀演出经历,曾经合作过的乐手大多大名鼎鼎,Steve Vai、Carlos Santana和已逝

发表于:2019-02-08 / 阅读(98) / 评论(0) 分类 英文摇滚歌曲

A Chinese entomologists has found a giant mosquito with a wing span of 11.15 centimeters. Zhao Li, curator of the Insect Museum of West China, said the mosquito, which belongs to the world's largest mosquito species Holorusia mikado, was found in Aug

发表于:2019-02-14 / 阅读(95) / 评论(0) 分类 2018CRI中国国际广播电台

Life Extension May Add Just Bad Time Living longer doesnt necessarily mean living better. Thats the lesson from the tiny roundworm called C. elegans, long a workhorse in basic biology lab work. The research is in the Proceedings of the National Acade

发表于:2019-02-14 / 阅读(93) / 评论(0) 分类 2018年科学美国人3月

每年在批改雅思模拟作文时,发现一些看上去无足轻重但是会给考官留下不良印象的小问题存在。以下是老师对这些小细节的一些总结: 细节一:标点独行侠问题 按英文书写规定,标点应紧挨着

发表于:2019-02-15 / 阅读(107) / 评论(0) 分类 雅思英语

应用文满分策略 一、信函写作:称呼、正文、落款 1、审题-判断是个人书信事务公函 决定: 语域使用:正式:使用礼貌表达,不用缩略语(对公) 半正式:可以使用缩略和口语表达(对私) 非正

发表于:2019-02-17 / 阅读(88) / 评论(0) 分类 考研英语

Today I am going to teach you how to play my favorite game: 今天我要教你们怎么玩我最爱的游戏: massively multiplayer thumb-wrestling. 超级多人拇指摔跤 It's the only game in the world that I know of 这是我所知的唯一一个

发表于:2019-02-21 / 阅读(124) / 评论(0) 分类 TED演讲教育篇

1.这两个饼图比较的是ABC公司2000年1月至2007年1月七年间男女员工在行政级别上的比例状况。 The two pie charts compare the proportion of male and female employees working in executive positions in ABC Company over a span

发表于:2019-03-02 / 阅读(141) / 评论(0) 分类 雅思英语
学英语单词
acquit sb. of a crime
acute fulminating meningococcemia
administrative behavior
Alysicarpus vaginalis
american national standards institute(ansi)
ante-
Arabic characters
arc shield
azygos vein
bellify
bentall
block-grants
Bol'shiye Ozerki
breaker arm
bridge crane with jib crane
cacioppo
cadmiferous blende
camera axis
card-table
cascade decay
central flow control software system analysis
chunter
code fetch
compact element
computational methods
computational zero-knowledge
continuous cutter
control and display unit
couple-clause
cyanidin(e)
cystobubonocele
dacryoliths
dinosterol
dividend address operand
DP, D.P.
drill floor
Eleele
eparsalgia
fall ... way
French West Indies
glutition
grady
hard-welding
hobbying
hooty
hymenomycetess
i-motet
intercounties
lagerine
leaf protein concentrate
Litke, Ostrov
malis pediculi
mattison
meliorations
metadyne transformer
multicrystal phased array scanning
Nyakayaga
ochpriasis
oil siphon lubricator
on the word
open one's eyes to
open plan school
page turning
pass catcher
phantasmatas
prime crew
product form algorithm
propeller bracket
proper operating condition
protein protective
pseudoconvergent
rail shooter
ram pump
regulator cubicle
Reid mechanism
rest hardening
sample length
secretory action
self-locking device
send someone sprawling
set wage
shatfords
sizing machinery
skippiest
sound law
storage disused mine workings
substitute for personal service
surface acoustic wave waveguide
synchronous lever
Teddy-boyish
tephillin
the-peacemaker
Theodor Mommsen
throw your hat into the ring
to sb.'s knowledge
totalisation
tri-colour stern light
tuberculosis of digestive system
tuckpointed
vfr clearance
weight balance measurement
write word