3-氨基-9-乙基咔唑

SARAH MCCAMMON, HOST: The indie rock band Pedro the Lion is known for its sometimes dreary lyrics that take on internal conflict often filled with religious angst. (SOUNDBITE OF SONG, THE FLEECING) PEDRO THE LION: (Singing) Who shall I blame for this

发表于:2018-12-17 / 阅读(49) / 评论(0) 分类 2018年NPR美国国家公共电台2月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

发表于:2018-12-24 / 阅读(59) / 评论(0) 分类 Scientific American(一)月

Hey 嘿 Beautiful, beautiful, beautiful, beautiful angel 美丽动人优雅纯洁的天使 Love your imperfections, every angle 连你每个不完美的角度都喜欢 Tomorrow comes and goes before you know 时光飞逝你不曾知晓 So I just had

发表于:2019-01-03 / 阅读(53) / 评论(0) 分类 听歌学英语

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(59) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(53) / 评论(0) 分类 万物简史

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(68) / 评论(0) 分类 TED演讲教育篇
学英语单词
Achampet
address substitute
Alumospencite
anteater
back prop
banana-skins
base-plate wedge
bennelongs
bertussi
best hand-picked lime
bravura
burst altitude
carbanion polymerization
characterisation
closet queen
collection frequency of refuse
combined combustion
complex hapten
component of variance
composite pier
cyesiology
dependances
differential transmitter
direct draw
discolorment
distributed data switching
Doctor Who
Duranta erecta
electromechanical interaction
electrotelluric current
embarkation team
eochaid
factionist
foreign exchange proceeds deposit
free running multiple vibrator
fuligulas
gardening
giycinate
glaphyra sungkangensis
goniometric
guarantee of the debt
household budget survey
inhes
inside-out
iopidine
Kominarek
limoniterra
linear speed of roll
locus of gene
maltheism
methylidynes
misprediction
moidered
mop water
Morse light bulb
musivisual
non-factive
Omnipen-N
overhand wharf tie
p-hydroxy cinnamic acid
patria
photocathode illumination
platy kurtic distribution
plough out
prepostmodern
Psymod
puffinus pacificus
radix levistici
ratios
rcpt
rectangle separating table
resistive coupling
resurrectable
rigid spacecraft dynamics
scavenge oil pump
search for identity
Sinaloa
slip line theory
slippery jacks
spaethe
stopword
subensemble
system simulator
take an aspirin
tantalizes
thermal oscillation frequency
thermodynamic study
thermosetting powder coating
translithospheric fracture
traverse crane
trigger input circuit
turn sth upside down
UK-2054
uleron(diseptal-A)
undecodable
unenviability
unsquandered
unstitching
vapor galvanizing
velocity spectroscopy
wet piece
wyndam