Z平均相对分子质量

541. He likes fishing. 他喜欢钓鱼。 542. Hes a lawyer. 他是个律师。 543. It doesnt make any sense for them to still be mad at you. 他们还生你的气,这没有道理。 544. Shes a natural entertainer. 她是个天生的表演者。 545. When he was a little boy, he was

发表于:2018-11-30 / 阅读(223) / 评论(0) 分类 新英语900句之生活篇

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because

发表于:2018-12-24 / 阅读(132) / 评论(0) 分类 Scientific American(四)月

Hello! 大家好 我们是戴尔老师 Victor. Nancy. I'm visiting relative this weekend. Relative means family members. But not really close family, not your mother, father, sister or brother. Family member. But this would be your grandparents, your aunts, yo

发表于:2018-12-25 / 阅读(191) / 评论(0) 分类 英语口语红宝书

relative A husband and wife were driving down the road arguing with each other. They passed a pig farm and the husband said, Are they relatives of yours? Yes, she replied, I married into the family. Notes: 1. A husband and wife were driving down th

发表于:2018-12-26 / 阅读(134) / 评论(0) 分类 英语笑话(MP3+文本)

[00:04.88]Why Are Maps Drawn with North at the Top ? [00:08.15]为什么地图绘制得北方在上? [00:11.42]Now it is hard to visualize a map that does not feature north at the top [00:15.24]现在很难想像一幅不是北方朝上的地图, [00:19.07]but this was not alw

发表于:2018-12-29 / 阅读(167) / 评论(0) 分类 大学英语自学教程上

You Have a Choice Two trains are traveling side by side and at the same speed along parallel tracks. We are seated in one of the trains, and with us we have a special speedometer that measures their r

发表于:2018-12-31 / 阅读(102) / 评论(0) 分类 有声英文阅读

A husband and wife drove for miles in silence after a terrible argument in which neither would budge. The husband pointed to a mule in a pasture. Relative of yours? he asked. Yes, she replied. By marriage. 一对夫妻开着车出去,走了很长一段时间谁也不

发表于:2019-01-02 / 阅读(145) / 评论(0) 分类 英文笑话

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

发表于:2019-01-08 / 阅读(152) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Heres a novel potential public health measure against the flukick up the humidity. The cold, dry months of winter signal the start of flu season. But previous resear

发表于:2019-01-08 / 阅读(173) / 评论(0) 分类 Scientific American(二)月

Thailand's People's Power Party has nominated a relative of former Prime Minister Thaksin Shinawatra to become the nation's new leader. But as Ron Corben reports from Bangkok, fighting among the PPP's factions created uncertainties before the vote.

发表于:2019-01-11 / 阅读(183) / 评论(0) 分类 VOA标准英语2008年(九月)

Everyday Grammar: Three Reasons to Learn Relative Adverbs From VOA Learning English, this is Everyday Grammar. In an earlier program, we talked about the relative pronouns who, that, and which. We promised to give you more details about how to use re

发表于:2019-01-12 / 阅读(151) / 评论(0) 分类 2015年VOA慢速英语(九)月

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(185) / 评论(0) 分类 2016年Scientific American(十)月

By Barbara Schoetzau New York 20 April 2008 Pope Benedict XVI ended his six-day visit to the United States with a jubilant mass at the 57,000-seat Yankee Stadium. From VOA's New York Bureau, correspondent Barbara Schoetzau reports the leader of the w

发表于:2019-01-31 / 阅读(154) / 评论(0) 分类 VOA常速英语2008年(四月)

isolated adj. 孤立的 jurisprudence n. 法学 lander n. 登陆者 latitude n. 纬度 launch n.v.发射(导弹、火箭等) layperson n. 外行 lichen n. [植]青苔,地衣 locale n. 场所 LR=

发表于:2019-02-06 / 阅读(181) / 评论(0) 分类 英文语法词汇

Tall men may want to get married earlier, but their marriages won't go the distance like men with a shorter stature, a new study has claimed.It found the rate of divorce among short men is significantly less than among average and tall men. They were

发表于:2019-02-06 / 阅读(110) / 评论(0) 分类 英语新闻

连词while除具有当时、同时等意义外,根据上下文还有以下不同含义及其不同译法。 一、引导时间状语从句 译作当时。例如: 1. Make hay while the sun shines. 趁着有太阳晒晒草。 (乘机行事,抓紧时

发表于:2019-02-11 / 阅读(142) / 评论(0) 分类 英文语法词汇

Relative Pronouns In this weeks episode of Everyday Grammar, we are going to discuss the relative pronouns who, that and which. A relative pronoun relates to the noun it is describing. Relative pronouns introduce a relative clause. Think of relative

发表于:2019-02-12 / 阅读(142) / 评论(0) 分类 2016年VOA慢速英语(七)月

Remember seesaws? Those things were great. But there was often a problem. Suppose theres a big kid on one side and a smaller kid on the other side. The seesaw just stays in one position: big kid on the ground, smaller kid up in the air. No fun. After

发表于:2019-02-24 / 阅读(150) / 评论(0) 分类 英语听力文摘 English Digest

考研英语 http://www.kuakao.com/pub/english/中,有很多相近词汇,词形相近、词义相似,但用法不尽相同,尤其是在完形填空中,经常会考到一些词汇辨析题。考生们在做题过程中,常常因为记忆不清

发表于:2019-02-25 / 阅读(146) / 评论(0) 分类 考研英语

distinct a.清楚的;不同的,独特的 She has very distinct handwriting. 她的字迹非常清晰。 Taiwanese is a dialect (which is) completely distinct from Mandarin. 台语是完全不同于国语的一种方言。 exception n.例外,除外

发表于:2019-03-17 / 阅读(405) / 评论(0) 分类 赖世雄进阶英语词汇3500
学英语单词
-features
acanthophora muscoides bory
acer sinopurpures-cens cheng
admire to do something
adrenal steroid
agrimoniin
anphtha distillation
antitrailer
auxiliary facilities
auxiliary terminal
bailing-out
banker's surety bond
barrels per calenday day
channeltron electron multiplier
CM potential
CNSLD
collar bush
commentaires
comparative toxicology
coseismal lines
covicine
dandriff
diffraction optics
Dobs
double needle type power meter
dphs
draftless
electric quality
elephantopus scaber l.
emmentals
exogenetic inclusion
fascia of forearm
Fericon
forecasting cash disbursement
free services and repairs
fungous brown stain
gaseous star
gonatids
grain-boundary area
gulley trap
hard macrogol
high lag servo
homologues (homologous chromosome)
hydrogen eliminator
hypodermatic medication
impact resilience tester
Impatiens ganpiuana
indicator disc
infectious neuritis
interrupt sensing circuit
iridescent colour
john osbornes
labeled price
lay something up
low-energy physics
major dispositions
make no noise
manducates
marine palynology
merrimen
micranthum
monofils
mount catherine
mt olympus
multicomponent polymer fibre
multistage activated sludge treatment
multistore
net benefits
nickel vitriol (morenosite)
novelette
oral-oral
outdoor media
palaeoethnographies
peak to valley ratio
phenylamine
pityrosporon
Plasmodium immaculatum
presential
R Us
rifamycin sodium
roederers
Sampung
serpentinized peridotite
Shealtiel
shop hoist
sounder resonator
standing expense order
star processor
stop presses
sufferations
taps into
textual criticism
time-shared programming
Tourneur, Cyril
truffle
uniform extention
Vorogovo
wage-plug
waste packaging
wiinblad
word-strings
work-study program(me)