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This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. When it comes to handedness, righties rule. And according to a new study, they have for a long time, because even half a million years ago, nine out of 10

发表于:2018-12-24 / 阅读(36) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left. Now scientists at the Nation

发表于:2018-12-24 / 阅读(44) / 评论(0) 分类 Scientific American(四)月

[00:05.49]Why are some people left-handed? [00:09.09]Scientists have been trying to answer that question for many years. [00:14.32]Research has shown that ninety percent of people naturally use their right hands for most tasks. [00:22.94]But hundreds

发表于:2018-12-26 / 阅读(21) / 评论(0) 分类 美国英语听力80篇

经过对剑桥雅思听力题的总结,我们发现,许多题目存在着比较关系,破解了题目中的比较关系,也就可以正确解题。下面,我们就来为大家讲一讲雅思听力题中的比较关系。 在这里,我们把

发表于:2019-02-09 / 阅读(76) / 评论(0) 分类 雅思英语

新GRE阅读主要考验我们逻辑推理能力,在中国很少进行着方面的训练。逻辑推理能力在阅读中考察,从宏观上把握文章,抓住文章的主体结构是关键。下面为大家进行3种常见的GRE阅读主题结构

发表于:2019-02-17 / 阅读(32) / 评论(0) 分类 GRE英语

台湾籍旅美老师今天交给我们的句子是: And despite what many may think, handedness is not a choice. It can be predicted even before birth based on the fetus' position in the womb. So, if handedness is inborn, does that mean it's genet

发表于:2019-02-22 / 阅读(33) / 评论(0) 分类 留美老师带你每日说英文
学英语单词
2-hydroxypropanoic acid
adci (americam die casting institute)
air traffic control system
aniconism
antigenotoxicity
automatic flexible strapping machine
bottomed
by way of illustration
ceratina iwatai
Charmouth
chemical works
cinque-cater
circadian rhythm
colour video scope
Com. L.
control chart for denerits
convergement
cop winding machine
corfes
Craigite
Davis Glacier
devotionize
dischord
dispersing power
eigenvector projection
enclog
faberges
faysals
filling soap
forsake allegiance to
Fothergill's sore-throat
fundamental axis mode
fusion alloying
gang fight
glossas
godah
grammoptera matsudai
gymbals
gynoecy
hala
hapn
hemigamete
hesse-lipson method
Huaca Prieta
human-sized
impatient of
insipiently
Jhelum River
Khurmuli
kolob
krobylos
La Chaise-Dieu
laryngeal paralysis
liability dividend
loana
love-duet
make an ass of someone
mcdonagh
minimal dyadic expansion
minverite
Naticardina
nien
nourishing blood for moistening dryness
Nuevo Valle de Moreno
ohmammeter
ophitron
opisthocomus hoazins
pallial dentine
pandanaceaes
PCC (process control computer)
penny wise and pound foolish
perusals
port-wine stain
power-law velocity distribution
preparative method
quick switch
radial-line plotter
ratchet-gearing
rotary (cup) atomizer
rotating-beam ceilometer
safe regulations
shelled cedar seed
Sotra
sou markee
srg
subak
super saturated vapor
synthetic phonics
szaara
textisms
three-edged rule
TMTC (tri-model tape converter)
tooth clearance
toplines
toss ... about
traditors
triaxial cell
trim-tab servo
tropical freeboard
unisexual
whirlary
Wilburite