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
Anadon
antibody test
antimony barium tartrate
applied crystal physics
Bardet-Biedl syndrome
barium yield report
beacons
biogeographic regions
blade angle indicator
bofa
bryoxiphium savatieri (husn.)mitt.
buffaloe
buttonweeds
capacitance gage
chloridimeter
compassionates
continuous quenching
custom circuit
double flood
early warning station
economic prosecution
economic result
emotion orientation
eubrianax secretus
europeans
Eutrombicula alfreddugesi
face-centered tetragonal lattice
feed water treatment pump
fenothiocarb
fettiplace
Fiber Distributed Data Interface
floating type thermometer
Football Kits
formal Taylor expansion
gastric surface
Goodyear, Charles
governed engine speed
gradiometer survey
high-blown
hinged arch
indeclinability
isodiffusion surface
jawsmith
Kipseli
kitesurfers
kulivan
laemmlis
latispinus
lazy initialisation
Levomeprazine
ligamenta ossiculorum auditus
light wave measurement
Lupki
mail user agent
mccauleys
minimum cost programming
most of water utilised in animal's body
multi-axle tipper
multiple allele
mused
Mārahra
national marine service
Neuchâtel, Cant.de
obliquimete
orthodiagrnphy
partial reversal grading
permeation fluid mechanics through porous media
personality assessment
pink rice borer
polystichum deltodon
potassium acid sulfate
pouring wool
protogalactic
pseudo adiabat
ramulus cinnamomi
reduction of proctoptoma
resign
resin-impregnated tape
RPLC
Santa Clara, Barragem de
Saronikos Kolpos
schrods
selanders
short-setting
siliceous scheelite
sound in life and limb
spansaw
spheric captive balloon
spondylodynia
straight line mechanism
suborder percoideas
tensile shearing test
Tepetlaoxtoc
to come about
toxic elements
transmissive wave
Uehrde
ventilating plant
Vietcongs
Vojko
water screw
wood destroying fungi