分级沉积

A: Do you know anything about Dr. Miller's classes? B: Yes. Are you in his class? A: I'm thinking of taking his class next semester. B: He really knew his stuff, but he graded hard. Would that be OK? A: Yes, I really need someone who is really good.

发表于:2018-11-30 / 阅读(190) / 评论(0) 分类 英语情景对话-大学生活

Dinosaur Death Leads to Rise of Fish 恐龙死亡导致鱼类增多 Tens of millions of years ago, an asteroid hit what is now the Yucatan Peninsula of Mexico. The event led to a global mass extinction that has been linked to the end of the dinosaurs

发表于:2018-12-08 / 阅读(135) / 评论(0) 分类 2015年VOA慢速英语(七)月

It's a slow drip, but it's melting glaciers and we are to blame. That's according to a new research which finds the earth is now the hottest since it has been in 400 years and potentially the last 200

发表于:2018-12-11 / 阅读(116) / 评论(0) 分类 万花筒2006年

1. In a surprise visit to Iraq, Vice President Dick Cheney suggests Iraq's elections are a major step toward withdrawing US troops as a string of attacks kills 19. 2. President Bush unapologetically d

发表于:2018-12-15 / 阅读(188) / 评论(0) 分类 美联社新闻一分钟2005

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres a Native American site in Ohio that appeared to be a fort. But recent discoveries by archaeologists at the University of Cincinnati show thats n

发表于:2018-12-24 / 阅读(138) / 评论(0) 分类 Scientific American(九)月

As investigators studied the large serrated teeth of the giant shark, they discovered the massive power of its bite - a force of 20 tons. 在调查者研究这些巨鲨的大型锯齿状牙齿时,他们发现了它巨大的咬合力可达二十吨。

发表于:2018-12-28 / 阅读(96) / 评论(0) 分类 侏罗纪搏击俱乐部

EDUCATION REPORT - Computer Graded Writing By Nancy Steinbach Broadcast: Thursday, August 12, 2004 This is Steve Ember with the VOA Special English Education Report. Last year, a report by a committee

发表于:2019-01-06 / 阅读(161) / 评论(0) 分类 教育与新闻

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. As scientists delve deeper beneath the oceans surface, they find bizarre creatures that have adapted to harsh and extreme environments. Now comes a new o

发表于:2019-01-08 / 阅读(149) / 评论(0) 分类 Scientific American(四)月

1. Iraqi police arrest eight Sunni Arabs in Kirkuk for allegedly plotting to assassinate the judge who prepared the case against Saddam Housein. 2. An earthquake measured at least magnitude 5.9 shakes

发表于:2019-01-08 / 阅读(183) / 评论(0) 分类 美联社新闻一分钟2005

美联社,新闻一分钟,law,guide,Iraq,1. Chief Justice nominee John Roberts says he'll decide right-to-die cases using the law not his personal views as his guide. 2. Al-Qaida in Iraq claims responsibility for more than a dozen blasts in

发表于:2019-01-08 / 阅读(195) / 评论(0) 分类 美联社新闻一分钟2005

1. Intense fighting continues in Iraq. At least 69 people were killed in Baghdad Tuesday, following a day of bombings and mortar fire between Sunnis and Shiites. 2. The US Senate agreed to bring the P

发表于:2019-01-08 / 阅读(163) / 评论(0) 分类 美联社新闻一分钟2006

Urine Analyzer 尿液分析仪 blood sugar(glucose ) analyzer血糖分析仪 test strip 测试条 reagent 试剂 Semi-automatic Biochemical Analyzer半自动生化分析仪 Automatic Blood Cell Analyzer全自动血细胞分析仪 Urine sediments

发表于:2019-01-08 / 阅读(171) / 评论(0) 分类 医学英语

托福阅读:在阅读中感受文章风格的不同 1、托福阅读文章来源于哪里? 所有的托福阅读文章都是语言枯燥无味、措词准确精妙、风格独树一帜。因为所有的托福阅读文章都选自美国的大中学校的

发表于:2019-01-18 / 阅读(106) / 评论(0) 分类 托福英语

Chapter 1 第一章 The Setting of the Stage 人类历史舞台的形成 We live under the shadow of a gigantic question mark. 人类一直以来都生活在一个巨大问号的阴影下面 Who are we? 我们是谁? Where do we come from? 我们从哪

发表于:2019-01-21 / 阅读(127) / 评论(0) 分类 美国学生人类历史

CANBERRA, Oct. 14 (Xinhua) -- Australian scientists have made the alarming discovery that sea levels have risen more in the past century than at any other comparable period in the past 6,000 years. Researchers from the Australian National University

发表于:2019-02-06 / 阅读(143) / 评论(0) 分类 英语新闻

We wandered through a confusion of departments where people sat at large tables doing intent, 我们漫步穿过一个又一个部门,只见人们坐在大桌子跟前, investigative things with arthropods and palm fronds and boxes of yellowed bo

发表于:2019-02-13 / 阅读(122) / 评论(0) 分类 万物简史

Only about one bone in a billion, it is thought, ever becomes fossilized. 据认为,在10亿根骨头当中,只有大约l根能变成化石。 If that is so, it means that the complete fossil legacy of all the Americans alive todaythat's 270 mill

发表于:2019-02-17 / 阅读(91) / 评论(0) 分类 万物简史

Mitochondria manipulate oxygen in a way that liberates energy from foodstuffs. 线粒体支配着氧,释放食物中的能量。 Without this niftily facilitating trick, life on Earth today would be nothing more than a sludge of simple microbes. 没有

发表于:2019-02-17 / 阅读(131) / 评论(0) 分类 万物简史

In the 1830s, the British naturalist Edward Forbes surveyed ocean beds throughout the Atlantic and Mediterranean 19世纪30年代,英国博物学家爱德华福布斯勘察了大西佯和地中海各处的海床, and declared that there was no li

发表于:2019-02-25 / 阅读(156) / 评论(0) 分类 万物简史

As one commentator has put it, fleeing would mean selecting a slow death over a quick one. 有一位评论家说,逃跑意味着在慢死和快死之中选择慢死。 The death toll would be very little affected by any plausible relocation effort,

发表于:2019-02-25 / 阅读(109) / 评论(0) 分类 万物简史
学英语单词
acoustic mirage
adoption period
air type collector
ammonium plutonyl phos-sphate
amorphous solid
Anglo-Norman French
ardure
auto chrome
autoerythrocyte sensitization syndrome
backspace tape
Bad Alexandersbad
battle cruiser
bent beam ionization gauge
bit manipulation intrinsic function
biunivocal
boiled tung oil
browst
cement valve
character type-statement
Chirikof Point
clad-pellet gap
collectin
crammed peking duck
cult product
degrees Kelvin
depth of groundwater table
Dorosoma
emulsioning
end on shaft station
error spread
euthynnuss
exceptio juris jurandi
field excitation
filicinaes
FIV1
flamencologist
fusion product
had no use for
have no equal
herringbone type evaporatorV
horizontal system of coordinate
hydrobenzamide
ile-ife
Ileen
independent property
interacting computation
intervulcanizability
jadallah
jump at a conclusion
kachchan
kong the masters
kuramatsu
ledur
logic-in memory array
mahogany shoot borer
mattriss
memory partition name list
metal-oxide semiconductor trans-istor
microvillous
milk snakes
Mobius' sign
more than one can shake a stick at
Motley, Joho Lothrop
nef
nest hang
noodly
overall floorage
pack ice zone
pectate
peppar
pernells
phs
plotted line
policewoman
polyphase watt-hour meter
pondily
prethcamide
proportion factor
protected procedure
restricted diffusion
riveroes
rivet-head
rock tallow
Rockanje
Ruchill
SFPCCS (Spent Fuel Pool Cooling and Clean up System)
silver-screens
single frame operation
Spanone
special valuation method
sry-
streamlined cross section
struma vasculosa
sumo ring
take to be
taking filter
three port connection valve
Toyotsu
trublend
woodplanks
wrapping and unwrapping test of metallic wire
Zaphrentoides