[化] 放热反应

A Cool Sunburn A listener from Ontario, California wrote to A Moment of Science with a question her sons had asked her. The boys wondered why is it that when you get sunburned you often feel chilled. It really does seem like a contradiction: youve be

发表于:2018-12-31 / 阅读(37) / 评论(0) 分类 英语听力文摘 English Digest

Grammar Girl here. It's a rare bonus episode! Today's topics are generating story ideas and overcoming writers block. Matt from College Park wrote in saying that the podcast has helped his writing, and now his only problem is finding something to wri

发表于:2019-01-02 / 阅读(59) / 评论(0) 分类 英语语法 Grammar Girl

今天我们要学的词是knee-jerk reaction。 Knee-jerk reaction, 膝跳反应,意思是本能的第一反应。 Investors' knee-jerk reaction to the market downturn led to a sell-off, 投资人对市场下滑作出的本能反应造成股价暴跌

发表于:2019-01-09 / 阅读(104) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是knee-jerk reaction。 Knee-jerk reaction, 膝跳反应,意思是本能的第一反应。 Investors' knee-jerk reaction to the market downturn led to a sell-off, 投资人对市场下滑作出的本能反应造成股价暴跌

发表于:2019-01-16 / 阅读(122) / 评论(0) 分类 英语每日一词

LULU GARCIA-NAVARRO, HOST: Navajo leaders are scrambling to find a new owner for the West's largest coal-fired power plant, the Navajo Generating Station. For four decades, both the Hopi and Navajo tribes have relied heavily on jobs provided by the c

发表于:2019-01-17 / 阅读(52) / 评论(0) 分类 2018年NPR美国国家公共电台11月

What Is Fire? 火是物质燃烧过程中散发出光和热的现象,是能量释放的一种方式。火焰分为焰心、中焰和外焰,温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存,缺一

发表于:2019-03-09 / 阅读(233) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
1-phenyl-1-propanol
aardwolf
Acer oliverianum
aluminum silicates
ambiguous stimulus
awareness network
baggy top
bearing span of shafting
caprylic acid
car head chuck
caseous pneumonic tuberculosis
compensation depth
convolutional codes
daply
DC form factor
diabetic intercapillary glomerulosclerosis
direction of extinction
domestic content rate
east area
electron momentum
ellipsoidal cavity
embasure
enwrap
eosere
flexural slip
foundation stability
fricano
go snake
guede (haiti)
habitations
high-temperature component
hyperactive fault
hypercylinders
i-f
in-pack promotion
ischemic necrosis of body of talus
item-by-item
jaybirds
keratogenesis
key to diskette
language acquisition
Lewisville
light emitting material
locating pin spring
lose all recollection of
low - income housing
lycee
marriage of convenience
member of partnership
meridians guide
millboards
modal interference
Moose Javians
Mosby, John Singleton
Moses, Grandma
motivator-hygiene theory
mycosphaerella schonoprasi (rabenhorst) schroten
myter
No Benefit Clause
non-acceptable item
non-repetitive
nondeclarants
one hundred and second
optical transport network
paleopsychology
parasitic monster
photocopy
pivot table
prehistoric
preparations for artificial feeding
preprocessor utility
press resin
primary communication attachment buffer pool
puttyroot
Pynchonesque
resynchronizations
rhythmic percipitation
rubber-lined skip
Seccimer
security of tax payment
settlement rate
simha
skin-colour
slam-door
stoog
striped squirrels
Tarica
The anchor has come home
thoru
to satisfy
toxoplasmacidal
uncorrupting
undersend
unduty
unforthinking
Valeriana venusta
vapor phase oxidation
vent valve guide
von hofmann
Wai-Wai
war-proof
yoraths