本底影响;背景效应

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(58) / 评论(0) 分类 VOA2003(下)-环境与健康

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(85) / 评论(0) 分类 实用英语

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(57) / 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(51) / 评论(0) 分类 英语作文

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(102) / 评论(0) 分类 英语单词荟萃

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(58) / 评论(0) 分类 英语新闻
学英语单词
aapamoor
abjurements
Aepophilidae
Afro-Argentines
anchorpeople
apartment for rent
arm stirrer
arrange in rows along the taproot
battaile
bladder worms
Bluetooth LE
brass cotter pin
brefeldin A
Carrickbeg
cathodally
chemical teratogens
cleptobiosis
Columbiformes
comment syntax
competitive antagonism
contrivement
cross-tab
dactylopterous
Damnak Takao
data-cleaning operation
density of coal zone
depainter
dianes
difructosan
diplazium subsinuatum
drug-driver
DTPMP
endhand
epoxy derivative
epsilonproteobacterium
fertilization process
firestorm
fnord
frank bank
free gifts
fringe magnetic leakage
gonorhynchiform
holostrome
Ibuki
infective bulbar necrosis
intemerateness
interaction theory
ischiococcygeus
isobutylboric acid
Issehoved
Kankiya
Karahasanlι
kehoeite (kehoite)
Leptomedusae
locomen
macrotetrolide
medium organzine
micawbers
missile exterior ballistics
Mokhnach
monomerizes
Mont-Saint-Martin
multiplication operand
mutantional hotspot
New York cut
ngarrindjeri
nonesuch clover
note-hach
oehlens
parahiatal diaphragmatic hernia
pessimistic error pruning
potential-determining ion
primary light
pseudocyclic photophosphorylation
pushed back
radula campanigera
railway operating plan
receiver earpiece
reparented
rujak
satellite test center
seed-fern
semi-underground power house
SFC
show case
shut off pressure
swankiness
swept through
synchronous vibration
tayloria splachnoides (schleich)hook.
tricoherence
twinem
two-place
unwonderful
v. saphena parva
ventral tube
vibert
waste-disposal
whoore
wthr
yangpan
ZIX