修正的指数曲线

Mosquitoes Genetically Modified to Prevent Malaria There may soon be a new weapon in the fight against malaria - a genetically-modified mosquito that kills the disease-causing parasite once it becomes infected. Malaria is a leading cause of death wor

发表于:2018-12-16 / 阅读(41) / 评论(0) 分类 VOA标准英语2012年(一月)

P: Hey Yang Chen why are you playing Hail to the chief? I thought we were a sports show - are we going political? Y: Not really. You see, Patrick, the presidential election is in its final stretch - the home stretch - the final lap - just like in长跑

发表于:2018-12-25 / 阅读(111) / 评论(0) 分类 体育美语

A couple of years ago when I was attending the TED Conference in Long Beach, 几年前我参加在长滩TED会议的时候, I met Harriet. 我遇到了哈里特。 We'd actually met online before not the way you're thinking. 实际上我们以前在网

发表于:2019-01-03 / 阅读(45) / 评论(0) 分类 TED演讲科学篇

分集介绍:指数,log,对数微分;双曲函数 Exponential.and.log.Logarithmic.differentiation;.hyperbolic.functions

发表于:2019-01-05 / 阅读(335) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

to throw a curve to throw for a loop 美国人在打棒球时经常喜欢发曲线球,使球的方向会发生突变,这样给对方造成错觉,不能回击那个球。这和其他球类运动,

发表于:2019-01-07 / 阅读(169) / 评论(0) 分类 美国习惯用语

Jen: Hello and welcome to 6 Minute English from BBC Learning English. I'm Jen and with me today is Neil. Neil: Hello there. Jen: Todays story is all about allergies. If you have an allergy to something, your body reacts to it in a negative way. Do yo

发表于:2019-01-07 / 阅读(62) / 评论(0) 分类 六分钟英语
学英语单词
25-dihydroxycholecalciferol
a nuclear family
a young country
Adjustment Index
amplitude modulation factor
arrears of rent
beacon wave
benzoquinaldine
binary-coded decimal
bomb disposal, bomb-disposal
bought the farm
cobaltous selenate
commission of control
condition of action
controlled surface porosity support
coterie
demjanjuk
denotifying
dialectize
electrostatic horn tweeter
emission control standard
equatorial day
ethylene glycol adipate
even half-spin representation
fellini
Fessler compound
fifth-grade
flaw-piece
frequency-voltage converter
frontal receding plane
genus nerodias
girella leonina
groffe
guntha
gyratory sieve
haleoplankon
have effect on
hierarchic diffusion
horizontal constitution
hydraulic traverse cylindrical grinder
hydrohepatosis
improverishment
injobo
inviolately
Karakuni-dake
Kirundis
knocked down shipment
Kongo
labialise
linsidomine
literalizers
Lizard Point
local tabulation
lock off
mannitol-1-phosphatase
measure up
merwin's flame color screen
mesocolon pelvinum
microwave power module
mo(u)ld spot
mousepox
Natiuran
natural-gas-fired
nephrocalcinosis
nipple-shield
opera troupe
out-of-balance
overexpression
paederines
petrodrome
porklings
precipitation interference
predecease
prophet's gourd
pussyfootings
rack bar
radiating relieve slipway
radio location station
reinstitutionalizations
reprintings
rugaber
salicola
satellite wave
schoeneman
scrap stock
shallow and narrow channel navigation operating mode management
soil conservancy
stora
sudatorium
tanberg
thermodynamic stability
three-wide
unexpressive
unlimitedly
untriumphed
vidkid
viridin
vitamin B complex injection
Votice
Wheeler Springs
woojalesky
Zoisia