古种子学

Illinois' Solution to Asian Carp Invasion: Eat Them The Asian carp, a species of fish brought from China to the U.S. several decades ago, is a growing concern in the midwest state of Illinois. The number of Asian carp in the states waterways has soar

发表于:2018-12-08 / 阅读(72) / 评论(0) 分类 VOA标准英语2011年(九月)

Asian Carp now outnumber native fish in many areas of the United States and their expansion particularly threatens the fragile ecosystems of the Great Lakes. In an effort to control algae growth, catfish farmers in the southern United States introduc

发表于:2019-01-13 / 阅读(55) / 评论(0) 分类 VOA标准英语2010年(七)月

Commerical fisherman Chad Isaak and a partner haul in a boatload of invasive Asian Carp, Jul 2010 The multi-billion-dollar commercial fishing industry in the Great Lakes region of the United States employs more than 800,000 people, but is threatened

发表于:2019-01-13 / 阅读(49) / 评论(0) 分类 VOA标准英语2010年(七)月

Warning: This is a rather scary story, particularly if you are a very small tadpole. Halloween is the most frightening night the year, or it is the most scrummy night of the year, depending on whether you are on the right end of a trick or a treat. P

发表于:2019-01-17 / 阅读(63) / 评论(0) 分类 Children’s Stories-儿童故事集

By Mike O'Sullivan Los Angeles 14 May 2007 Dinosaurs and other prehistoric creatures hold an enduring fascination, especially to the artists known as paleo-artists who bring the ancient animals to life. Mike O'Sullivan reports on the work of two pale

发表于:2019-02-04 / 阅读(93) / 评论(0) 分类 2007年VOA标准英语(五月)

Showcasing interesting and innovative online destinations Art Chimes | Washington, DC 04 December 2009 It fades in and out. ... But what I think that does is that adds a feeling of mystery. Time again for our Website of the Week, when we showcase int

发表于:2019-02-05 / 阅读(54) / 评论(0) 分类 VOA标准英语2009年(十二月)
学英语单词
?-amino
acquired keratoderma
air-equivalent
alarm contact
Ambodilazana
antirachitic value
Anya-Nya
asids
attitude parameter
Ban Mae Lamao
Ben Tre, Tinh
bufodesoxycholic acid
celtia japonica
centralized reference system
cerris
change his tune
Chateaurenard
CMRD
collude with
Congonhas, R.
d'Alembert's paradox
dancemakers
dead blockout
delay factor
delves
department of trade and industry
detector rod
developed area ratio
dicrotic notch
difficulty curve
do everything in one's power
dyer's greenweeds
earthslide
eat their words
ecclesiastical attire
employee orientation
Eurocentrist
every moment
excitaton source
FASF
fibrillins
fluocarbon
football item
fowl feeding standard
frost with
graphic mouse
hibbsite
hypocreaceaes
iatron
indivisible
intents
inter-company competition
interior of dry dock
Kandhkot
keyboard send receiver
kineplex
knight's tours
Kyklades Nisoi
leptanrin
locked cusp
low-temperature thermocouple
madison-grant
magnetic cards
marketing variance
maximum loss expectancy
mediastina
microfilaricides
mis-classification
nauen
neogitogenin
number roll
nutberger
orjale
oscilloscope probe
outmetal
path oriented testing
Perlin noise
pigment yellow
polypneustic
production sharing contract
rejector unit
renditioned
rub sth in
rubidium iodobromochloride
rule of coss
simultaneous adaptation
sirenis
six-wheelers
sodium acetyl-anthranilarsenate
Soeda
suosan
super heavyweights
supergratings
supply active fertilizer
surface decarburization
Swedophiles
synchronized timing
total acceptance angle
tristre
weakly consistent estimate
zeidaes
zoning fossil