拉塞尔种群捕捞理论

America's population is becoming older and increasingly diverse - made up of people who are different from each other. Nowhere are those differences more apparent than in Houston, Texas. The city has seen an increase in the number of minority communi

发表于:2018-12-07 / 阅读(36) / 评论(0) 分类 2017年VOA慢速英语(七)月

By Claudia Blume Hong Kong 06 June 2008 Communities and marine organizations around the world celebrate World Ocean Day on June 8 to raise awareness about the importance of the seas. Most Asian fishermen are not in a celebratory mood, however. Fish

发表于:2019-01-11 / 阅读(35) / 评论(0) 分类 VOA标准英语2008年(六月)

Despite Paralysis, Hawking's Mind Soars When he turned 70 in 2012, Hawking was honored with a special exhibit at Londons Science Museum. The tribute gave visitors an inside look at the life and work of one of the world's greatest minds. We have some

发表于:2019-01-13 / 阅读(49) / 评论(0) 分类 VOA标准英语2013年(一月)

Pareto's Principle - The 80-20 Rule How the 80/20 rule can help you be more effective. In 1906, Italian economist Vilfredo Pareto created a mathematical formula to describe the unequal distribution of

发表于:2019-01-21 / 阅读(72) / 评论(0) 分类 实用英语

population studies 人口研究 demography 人口学 demographer 人口学家 population theory 人口理论 Malthusianism 马尔萨斯主义 neo-Malthusianism 新马尔萨斯主义 overpopulation 人口

发表于:2019-02-02 / 阅读(34) / 评论(0) 分类 英文语法词汇

TOKYO, Jan. 24 (Xinhua) -- A Chinese fishing boat was detained by Japanese authorities on Thursday for unauthorized fishing in waters around Nagasaki Prefecture in southwestern Japan, Chinese Consulate General in Fukuoka told Xinhua. The boat, regist

发表于:2019-02-18 / 阅读(85) / 评论(0) 分类 英语新闻
学英语单词
acrodont dentition
agitating film evaporator
assortment charge
Austrocactus
average transfer rate
basal canker
batch session
beyond ... control
bilateral type
buffering power
C. P. L. R.
cardinal cloth
Caromb
chelene
Chooser Option
citronize
coasta
coefficient of charge weight
common room
Coniothyrium
contrail altitude
coproatibody
coyol palm
curse one's stars
cyclical operation
diascope
dihydropteridine
double angle fomula
elsinoe rande jenkins et bitancourt
employment-at-will
europicamera
evergreen states
external hirudiniasis
F-104
galegine
georg
Half astern starboard!
hardware dependent
hehehes
HHAR
high-very-high frequency (hi-vhf)
Holland gin
homberger
horizontal resistance
hydrocracking
in all shapes and sizes
inconsecutive
industrial technology information
inorganic fertilzer
isobutyraldehyde semicarbazone
juenger
Kiangsu
knockout punches
L-combustion chamber
lace up
Loch Linnhe
long-lived2 complex
Malenga
mandatory adoption
Mojo Wenz
noble rot
Northern Plain
not lift a hand
oblique cissoid
ocular scintillation
P54C
padding cloth
Panjang, Selat
pilot fee
polysyndetic
posterior longitudinal ligament
primary epilepsy
proper flagmanifold
punctuatim
rakha
Recinto
register, descriptor
relationship closeness
reportions
Revolutionary calendar
rock dust nuisance
Santa Rosa storm
scram water accumulator
seek gapeseed
side-hand
Sierra Mojada
sliding friction time
soybean dehulling machine
split suit
standard error test
structure origin
sugar cane to meal
test for bearing power of soil
tip of the spike
train brake
us customs
vitrea laminae
welfare-state
what ... for?
WORSE (word selection)
X-ray active galactic nuclei
zone of the open sea