无作用浓度

By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide

发表于:2018-12-15 / 阅读(284) / 评论(0) 分类 VOA2003(下)-环境与健康

Benjamin Frankin wondered about(at) lightning. He combined his curiosity with imagination and carried out his well-known experiment to show that lightning and an electric spark are the same thing. Cur

发表于:2018-12-30 / 阅读(447) / 评论(0) 分类 自考英语(一)78讲

Antibody Could Reverse Diabetes Scientists in California have developed a new approach to treating diabetes which might be able to reverse the disease and not just treat the symptoms. The World Health Organization estimates that more than one-third o

发表于:2019-01-04 / 阅读(312) / 评论(0) 分类 VOA标准英语2011年(十二月)

今年7月,14岁的美国华裔少年刘继打破老虎伍兹的纪录,成为美国青少年高尔夫锦标赛史上最年轻的冠军,同时刷新老虎伍兹保持了19年的纪录。刘继出生在纽约州一个只有11万人口的小城市史

发表于:2019-01-09 / 阅读(310) / 评论(0) 分类 实用英语

The Effect of Advertisement 广告的效果 Some businessmen were talking about advertising on TV excitedly. As none of them had ever done it before, every one had his point of view. At this moment, Mr. Grey came by. He was a car dealer and he had on

发表于:2019-01-28 / 阅读(302) / 评论(0) 分类 英语小达人

今天我们要学的词是level off。 To level off, 是稳定下来的意思。 At some major banks, the number of bad loans is starting to level off, 一些大银行的坏帐案例正在逐步稳定下来。 最新研究发现, U.S. obesity rate

发表于:2019-01-31 / 阅读(271) / 评论(0) 分类 英语单词荟萃

今天要讲的两个习惯用语并不是由同样一个关键的字组成的,然而,它们具有相同的意思。也就是诚实,真实等。今天我们要讲的第一个习惯用语就是:

发表于:2019-01-31 / 阅读(357) / 评论(0) 分类 美国习惯用语

Larry和李华正在乘公共汽车去公园去溜冰。今天李华会学到两个常用语:to level with someone和clueless. (Local traffic) LL: I have to level with you, Li Hua. I'm not very fond

发表于:2019-01-31 / 阅读(279) / 评论(0) 分类 美国之音《流行美语》

今天我们要学的词是ripple effect。 Ripple effect, 连锁反应。 The shutdown of the local mine had ripple effects on the entire community, 当地这家煤矿的关门,在整个社区引起了连锁反应。 美国汽车业界人士警告说

发表于:2019-02-02 / 阅读(279) / 评论(0) 分类 英语每日一词

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-05 / 阅读(277) / 评论(0) 分类 英语每日一词

As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th

发表于:2019-02-06 / 阅读(270) / 评论(0) 分类 英语作文

Affect and effect are different in meaning, though frequently confused. Affect is chiefly used as a verb and its main meaning is to influence or make a difference to, as in the following example sentences: Affect一般用作动词,其含义为:影响

发表于:2019-02-07 / 阅读(353) / 评论(0) 分类 英文语法词汇

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-13 / 阅读(308) / 评论(0) 分类 英语单词荟萃

As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th

发表于:2019-02-13 / 阅读(248) / 评论(0) 分类 英语作文

VATICAN CITY, Feb.28 (Xinhua) -- The resignation of Pope Benedict XVI came into effect at 8 pm local time (1900 GMT) on Thursday, who had left the Vatican by helicopter for the papal vacation retreat in south Rome earlier in the afternoon. The pope h

发表于:2019-02-17 / 阅读(293) / 评论(0) 分类 英语新闻

BEIJING, Sept. 1 (Xinhua) -- Medicine prices at public clinics have been notably reduced thanks to a policy that promotes basic medicine, an office of the State Council said Thursday. Current price levels of basic medicine used by government-funded t

发表于:2019-02-18 / 阅读(247) / 评论(0) 分类 英语新闻

1解决:Solve, deal with, cope with, handle, resolve, address, tackle 2损害:Damage, hurt, injure, harm, impair, undermine, jeopardize 3给与:Give, offer, render, impart, provide,supply, afford 4培养::Develop, cultivate, foster 5优势:

发表于:2019-02-19 / 阅读(338) / 评论(0) 分类 雅思英语

讲解: Today's key word is Obesity. Obesity 肥胖,肥胖症 Obesity is a medical condition in which excess (额外的) body fat has reached the level that it may have a negative effect on health. Here's an example: Sugar and fat can more easi

发表于:2019-02-21 / 阅读(301) / 评论(0) 分类 英语悠选脱口秀

19.保持稳定:Level out,do not change,remain stable,remain still,remain steady ,be stable,maintain the same level,remain unchanged,be still,remain the same level,stay constant,keep at the same level,level off,stabilize ,

发表于:2019-03-02 / 阅读(286) / 评论(0) 分类 雅思英语

1解决: Solve, deal with, cope with, handle, resolve, address, tackle 2损害:Damage, hurt, injure, harm, impair, undermine, jeopardize 3给与:Give, offer, render, impart, provide,supply, afford 4培养::Develop, cultivate, foster 5优势:

发表于:2019-03-13 / 阅读(347) / 评论(0) 分类 雅思英语
学英语单词
absorbent gauze
administrative directory management domain
air fan
Allainville
Altgeld, John Peter
analytic vector bundle
animation stand
araguaya rivers
ax-grinder
axiomatic
Bobadilla del Campo
bonds outstanding
boundary layer aerodynamics
Brewster Sessions
bunk truss
call system
cassialoin
catheterised
cement(-sand) mortar
Cenocentrum
Creek War
cursings
cybersexually
double-scull
drench with
drug-development
endocervical biopsy curet
enforced settlement
Enhanced Capabilities Port
Erlang B
f.r.s
Fenyuan Township
flush-valve
forage about
fore plane
fraena
gedrosian
gravity railroad
hard-mouthed
harmonic process
have rats in the garret
he who pays the piper calls the tune
head mimicry
heat-proof varnish
high speed electronic bandknife splitting machine
high-low bias check
hot-link
impactfulness
INCDG
itawamba
Jackson's syndrome
Jongensklip
keyword-in-context (kwic)
Kohrville
launch and leave (lal)
light-press fit
load-on
microeconomics of productivity
millipore filter
mini-constitution
mistle-toe
multisectoral
nastell
neutral-position
nitrogenating
only natural
outliner
Paraneuroptera
path-dependent
permanent coupling
permanent pipeline system
pleurote
potash dichromate
powder lubricant
press department
quo jure?
road side
Robert Maynard Hutchins
robot problem-solving system
ruthenium sysertskite
Salla disease
self-starting injector
Sir Arthur Travers Harris
small deformation
stanno-
stretching roller
subfilters
superscalar architecture
support centre
Tarnogskiy Gorodok
through feed drying furnace
tracheophony
trouble for something
turbulent shock wave
valoneaic acid dilactone
vd.
wall-plates
wetted area
wind-driven turn indicator
windward blocking
winnowers
Yellala Falls