氨基醋酸,氨基乙酸

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. NationalGeographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

发表于:2018-12-30 / 阅读(63) / 评论(0) 分类 国家地理2008年

RACHEL MARTIN, HOST: President Trump may have suffered a setback this week with health care reform. But he did score a victory when it comes to his five-star hotel here in Washington, D.C. There had been a controversy over a particular clause in the

发表于:2019-01-16 / 阅读(51) / 评论(0) 分类 2017年NPR美国国家公共电台3月

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. National Geographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2008年

AMERICAN MOSAIC - Jessi Alexander's First Album / Weather in America / Top High School Scientists By Nancy Steinbach Broadcast: Friday, March 18, 2005 (THEME) HOST: Welcome to AMERICAN MOSAIC, in VOA

发表于:2019-01-30 / 阅读(114) / 评论(0) 分类 American Mosaic

By Gilbert da Costa Abuja 07 August 2006 Hundreds of residents of Nigeria's disputed Bakassi peninsula have held an independence ceremony to highlight opposition to the government's plan to hand over the oil-rich region to Cameroon. -------- A group

发表于:2019-01-31 / 阅读(121) / 评论(0) 分类 2006年VOA标准英语(八月)

Kara: So, coming from such a large family, again, what do you imagine for yourself as far as family size and your ideal lifestyle? Lupe: I love having a big family. I think that is the biggest blessing in my life because there's always someone there

发表于:2019-02-02 / 阅读(22) / 评论(0) 分类 原版英语对话1000个
学英语单词
accelerating electode
adaptors
adsorption energy
allocatedchannel
american martens
aminoglutaric acid
antepipona biguttata
arkadia
as thick as rabbits in a warren
associated document
association neuron
bhava-cakra
call to remembrance
clinanthia
credit squeeze measures
creditor's meeting
creeping wintergreens
decay radioactive
definite-proportions law
demonize
didromic
dierich
dihydroneopterin
disciplinary infraction
disjointure
doryopteris concolor
dynamic document
edaphology (pedology)
elliptic segment trajectory
ending pulsation
enhanced lateral mode confinement
evolutionary homeostasis
experimentation research design
extinguisher loci
Famid
feels her up
floatless carburetor
fluid or gate
freyd
Frost-Lang operation
funny-shaped
gastric balloon
German shorthaired pointer
get a view of
Gibberelic
glanced
grudgekin
high level Petri net
horizontal induction
hot cathode direct current sputtering
hydrographic section
in-orbit test
j.r.r.
karakalpaks
kept in step with
Lasianthus hirsutus
Leontopodium pusillum
low molecular weight polyethylene (lmpe)
macrothele taiwanensis
mathematical inversion
multivariate master equation
Mīt Fāris
nhus
nine-point formula
non-cyclic phosphorylation
octolite
optimal feasible solution
otative cylinder
over-cooling
party C
paying-in book
phenoxymethyl penicillins
philandrist
polite company
porreca
processor state
psychoneuropharamacology
ratio enhancement
recessed head
reoccurrences
schoenflies point group
sclerised
security safeguards
semen sesami
separate earth electrode
silent tire
source related limits
soybean sprout
spearless
stator frame turning & boring machine
tantara
tendipus astenus
tfua
through connection filter
thymovidin
tuberosity of distal phalange
utility versus money loss
vary as
video DRAM
Viviandan
weight flow rate
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