环水解酶,环式水解酶

发表于:2018-12-02 / 阅读(198) / 评论(0) 分类 英语口语1+1

Alex wanted to become a citizen. He signed up for a citizenship class. He went to the first class. The teacher spoke only Spanish. All the other students spoke only Spanish. Alex spoke Spanish, too. He asked the teacher, Why are you speaking Spanish?

发表于:2018-12-04 / 阅读(145) / 评论(0) 分类 英语第1级听力-English Level 1

Alex wanted to become a citizen. He signed up for a citizenship class. He went to the first class. The teacher spoke only Spanish. All the other students spoke only Spanish. Alex spoke Spanish, too. He asked the teacher, Why are you speaking Spanish?

发表于:2018-12-07 / 阅读(148) / 评论(0) 分类 超级简单英语阅读

Melody 1 from the Other World In October on the east coast of Australia migrating humpback whales 2 pass very close to the shore. With the help of Max Egan, we went to film them near Byron Bay. It was

发表于:2018-12-30 / 阅读(380) / 评论(0) 分类 英语沙龙2004全年合辑下

Cloze: Stingers of the Sea 海中刺客 ── 水母 Given impressive-sounding names like Portuguese man-of-war, jellyfish are certainly respected and feared by humans. Not exactly a fish, and lacking a spine, this creature has a single body cavity

发表于:2019-01-02 / 阅读(151) / 评论(0) 分类 双语有声阅读

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(154) / 评论(0) 分类 医务英语

D Dahurian Rhododendron Leaf P.E 满山红提取物 Daidzein 大豆甙元 Daidzin 大豆甙 Dandelion P.E 蒲公英提取物 Daphnetin 瑞香素 Daphnin 瑞香甙 Daucosterol 胡萝卜甙 Dauricine 蝙蝠

发表于:2019-01-03 / 阅读(164) / 评论(0) 分类 医务英语

This is scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Predicting a hurricanes strength and speed is crucial in order to save property and lives. Right now, the only way to get accurate information is to fly

发表于:2019-01-08 / 阅读(169) / 评论(0) 分类 Scientific American(四)月

By Leta Hong Fincher Washington, DC 27 February 2007 watch Genealogy report Strom Thurmond and Al Sharpton A new genealogical study shows that a prominent African-American civil rights activist is descended from a slave owned in the mid-nineteenth c

发表于:2019-01-12 / 阅读(199) / 评论(0) 分类 2007年VOA标准英语(二月)

By Jim Teeple Ramallah 23 January 2006 Politicians in the Palestinian territories wrapped up final day of campaigning Monday, ahead of crucial vote Wednesday to elect new legislature Politicians in th

发表于:2019-01-13 / 阅读(240) / 评论(0) 分类 2006年VOA标准英语(一月)

Oum Sok began working as a cyclo driver when he was 18. He says the city has become very expensive over the years, making it much harder to earn a living. New York has its yellow cab. London has its red bus. But Phnom Penh has its cyclo - a three-whe

发表于:2019-01-13 / 阅读(187) / 评论(0) 分类 VOA标准英语2010年(六)月

The State Department said Thursday an agreement for the start of direct peace talks between Israel and the Palestinians is close to completion. The deal will apparently be sealed by statements from the United States and the International Middle East

发表于:2019-01-13 / 阅读(145) / 评论(0) 分类 VOA标准英语2010年(八)月

Deal Announced to End Budget Impasse at US Aviation Agency 联邦航空局预算陷入僵局 Another political standoff in Washington appears to be over. Senate Majority leader Harry Reid announced Thursday that lawmakers have agreed to approve an em

发表于:2019-01-14 / 阅读(121) / 评论(0) 分类 VOA标准英语2011年(八月)

Locals in Uganda are lauding a construction project financed by China which is creating the East African country's largest hydroelectric power plant. The 600-megawatt (MW) Karuma Hydroelectric Power Plant is located at the mid-western district of Kir

发表于:2019-01-19 / 阅读(211) / 评论(0) 分类 2018CRI中国国际广播电台

HYDROCEPHALUS Merriam-Websters dictionary defines hydrocephalus as an abnormal increase in the amount of cerebrospinal fluid within the cranial cavity that is accompanied by expansion of the cerebral ventricles, enlargement of the skull and especiall

发表于:2019-01-23 / 阅读(285) / 评论(0) 分类 英文短篇小说

67 维生素C能否破坏DNA? DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(173) / 评论(0) 分类 科技之光

SCOTT SIMON, HOST: The debate on approving new drugs to treat pain can sometimes get as polarized as abortion or gun control, as the number of people who become addicted or who have died from overdoses of legal painkillers increases. Several states a

发表于:2019-02-16 / 阅读(140) / 评论(0) 分类 英语语言学习

The charts compare the source of electricity in Australia and France in the years 1980 and 2000. Between these years electricity production almost doubled, rising from 100 units to 170 in Australia, and from 90 to 180 units in France. In 1980 Austral

发表于:2019-02-25 / 阅读(159) / 评论(0) 分类 托福英语

His's perivascular Chinese希斯血管周隙(脑与脊髓血管动脉外膜和神经胶质血管周围界膜之间的间隙) His's zones Chinese希斯区(胚神经管的四个纵增厚束) Histology Chinese组织学 Hitzig's gridle Chinese希茨希带(与乳房同高的一环状痛觉缺失区) Hitzig's test Chinese

发表于:2019-02-26 / 阅读(201) / 评论(0) 分类 英文语法词汇

本期内容: Leaders from nearly 200 nations signed an agreement to phase out hydro fluorocarbons, chemicals used in refrigeration and air conditioning. In the 1980s the Montreal Protocol replaced chlorofluorocarbons, which were known to harm the

发表于:2019-03-02 / 阅读(182) / 评论(0) 分类 夏说英语新闻晨读
学英语单词
2-bromoethyl nitrate
acutuminine
Agulo
air-to-glass surface
alternate system residence device
Anaphalis yunnanensis
ancient hematoma
ar(r)hinia
arteria labialis
beta-fetoprotein
bibliometrists
book out of
Bubble Dancing
bubble domain memory
Camaquã, R.
Cimicifuga nanchuanensis
cochlear spiral canal
common baseplate type
currency money
Dacun Township
data center control
dedispersing
desman
double correlation
drifty
family albulidaes
fast compression cloud chamber
feuille
field ion microscope(FIM)
foreign bond markets
foreseized
free loan
Gibalbīn, Sa.de
graded seal glass tubing
gravitational measurement
hand puncher
hilus of kidney
honeycomb lung
ionian sea (deti jon)
jackhammer
jersualem
joanneses
joint facility costs
Kandel
lardy
limiting effective wavelength
located object
matarese
meaning in texture
metagranite
military censorships
Misgab
modulation-type switching transponder
mollissima
Monaco-Ville
mosaic character set
N-methylisoindigotin
net-asset
nine-part canon
nitrosoethylurea
northern house martin
on-ice wind
ophichthus cephalozona
oscillation valve
pannella
plant succession
plastic core-rubber-tires
Platanistidae
production expenditure
pulvinaria durantae
quasi-residual
resistive sensor
retropharyngeal space
rhynchophorus ferugineus
roadway bucket
scanning conversion switch
screw fixing
shipping origin
signal reconnaissance
slope facies
social net output value
spearsman
state-established
steering yoke bolt
stegma
stern compartment
subordinated automatic speed control
supercavitating
swivel-gun
symmetry-breaking
tedemann's boides
toupper
Tragelaphus
travel(l)ing bogie
traveling-wave tube amplifier
variable time fuze
vinaconic acid
voice guard
Warborough
wec
yuan-ming yuan imperial garden?
zalewskis