试验顺序,测验程序,检定步骤

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(217) / 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(210) / 评论(0) 分类 数学英语

HEALTH REPORT-Testing for Pre-Diabetes By Nancy Steinbach Broadcast: April 17, 2002 This is the VOA Special English Health Report. American health experts say more people should be tested for a condit

发表于:2018-12-07 / 阅读(209) / 评论(0) 分类 健康与环境

[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(212) / 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(151) / 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(268) / 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(205) / 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(305) / 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(243) / 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(221) / 评论(0) 分类 Scientific American(五)月

Improve Your English by Testing Yourself English learners can improve their ability to remember and use new words by testing themselves. This idea comes from Sarah Lynn, an educational consultant and teacher at Harvard University's Bridge Program. Sh

发表于:2019-01-12 / 阅读(198) / 评论(0) 分类 2016年VOA慢速英语(八)月

The goal of rapid HIV testing in emergency rooms is to save lives and prevent the spread of HIV. The U.S. Centers for Disease Control recommends routine HIV screening of patients admitted to hospital emergency rooms, unless the patient refuses or opt

发表于:2019-01-13 / 阅读(167) / 评论(0) 分类 VOA标准英语2010年(七)月

EDUCATION REPORT - Educational Testing Service Begins New TOEFL Test By Nancy Steinbach Broadcast: Thursday, October 13, 2005 I'm Shep O'Neal with the VOA Special English Education Report. Last month,

发表于:2019-01-30 / 阅读(194) / 评论(0) 分类 教育与新闻

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(176) / 评论(0) 分类 阅读空间

LONDON, April 11 (Xinhua) -- The Olympic Torch has passed rigorous testing to ensure even the worst of Britain's weather will not be able to put it out, the Evening Standard newspaper said Wednesday. Two prototypes withstood 50mph winds, extreme temp

发表于:2019-02-07 / 阅读(176) / 评论(0) 分类 英语新闻

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(235) / 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(179) / 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(160) / 评论(0) 分类 英语听力练习题

An independent panel of U.S. health experts is recommending that all Americans between the ages of 15 and 65 be routinely screened for HIV, the virus that causes AIDS. The HIV test would not be mandatory. But experts hope more widespread testing migh

发表于:2019-02-18 / 阅读(172) / 评论(0) 分类 英语新闻

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(219) / 评论(0) 分类 柯南脱口秀
学英语单词
algera akinesia
all-in cost
allethrins
angular moment of momentum
antilogging
apocopations
at fever heat
bank light
base structure
beggaress
bilateral chorea
bog-standard
boron fuel
brush lipless guard
cable zero calibration
cipolins
co-incides
concatenated key
constant level balloon
coragypss
Couinae
credit financing
cu. cm.
data list structure
deoxycytidines
dissolation
drive a point home
electronic still camera
equivalent matrices
eragrostis brownii
faithless
frugs
fuel (element) transport
gabbana
geometric hydromechanics
glucomannase
Gurvandzagal
hare wallabies
hazen's formula
holihock
hydroxyiodoquinolinesulfonic acid
implicit differential equation
interactive diagram
joint method
lay something to pledge
letsons
lineartempering
liquid nitrogen truck
machine readable dictionary
mellissa
messes around
microprogrammable building block system
mist irrigation
multi-start thread
nautical day
nazca plate
neo-orthodox
neutron-capture-produced fissionable material
non return trap
nude rat
omelet(te)
onica
outputelasticity
peripheral allocation table
phenylsulfinylacetic acid
plastic cask
plugging meter
positive plate
Putsonderwater
qnd
recumbent anticline
red river valley
redesignating
rentable
rerolled rail
resource definition statement
sea cargo
semivalent
sepia filibrachia
sievedigger
sign up for
silly point
single-puss operation
Songololo
stoesz
thin-film thickness meter
thrashing out
Tintinnina
Torazina
track log
transverse curl
two position key
under one's nose
underbark
velocity of shear
visual simulator
vitellus capsule
walnut cake
wide-size distribution
Xanthopappus subacaulis
y.o.u
Yaracuy