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(256) / 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(154) / 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(209) / 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(155) / 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(190) / 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(124) / 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(165) / 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(181) / 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(197) / 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(205) / 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(172) / 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(207) / 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(182) / 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(200) / 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(121) / 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(169) / 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(164) / 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(171) / 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(169) / 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(427) / 评论(0) 分类 赖世雄进阶英语词汇3500
学英语单词
acmite (aegirine)
alkaline protein
amitha
annual tide
application message authentication key
b sharp
backreferencing
badge
Ban Wang To
base intermediate
base slide
benzothiophenes
berezovskite
Beyla
biflorone
biosemantics
book-value
bow-shaped
bridge stabilized oscillator
Budge-Budge
Bupleurum alatum
center-to-focus distance
charles dickenss
chinne
clock counts
company level productivity
compromise solution
connector impact
coparallel
cumulative effect of changes in accounting principles
da vinci code
dedication
deep socket wrench
disenamor
economic and technical interchange
enclosure compound
entrenches
eriodictyon fluidextract
established roles
Euteleostei
file header label group
fixed gauge
Foulness Point
Foëcy
gastric motility tests
Geoarchive
glycol(l)ic amide
glyme
goods lift
granolithic concrete
grey face
heteroxenous
iron castings
irregular bedding structure
key database file
Kitashima
Lebanon cedars
losengeous
Luckenwalde
luminescent material photometer
Luy-de-Béarn
make-weights
mehtas
memory material
metaphosphoric
motoring map
mpaa
multialphabet
neosynesin
pairing vibration
permalinks
pneumatic circuit
prizeman
quartboat
quasicompact
quiet days
ratio chart
renal-splenic venous anastomosis
reservoir leakage
reverse sweep
rolled gold covering
sabotiers
schistosa
seam jig
short-range omnidirectional beacon
situation of problem
solid core reactor
spina mentalis
stelophyta
subaerial denudation
Swiss Civil Code
the horror
the Union Jack
three junction transistor
tolerable injury level
unmeasurability
untrimmable
Validation function.
vigen?re encryption system
wax gland (or ceruminous glands)
zero tensor
zygoid