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Windows Vex Bats' Echolocating Abilities 干扰蝙蝠回声定位的烦人窗 Just as humans understand the shape of our surroundings by how light reflects off objects, bats use reflections of sounds they produce insteadwhats called echolocation. But

发表于:2018-12-02 / 阅读(65) / 评论(0) 分类 2017年Scientific American(九)月

短文回顾:The Spring Couplet, also called couplet ora pair of antithetical phrases is a special form of literature in China. The Spring Couplet is composed of two antithetical sentences on both sides of the door and a horizontal scroll bearing a

发表于:2018-12-27 / 阅读(29) / 评论(0) 分类 英语早间课堂

Mendeleyev used a slightly different approach, placing his elements into groups of seven, but employed fundamentally the same principle. Suddenly the idea seemed brilliant and wondrously perceptive. Because the properties repeated themselves periodic

发表于:2019-01-29 / 阅读(29) / 评论(0) 分类 万物简史

Insects Donate DNA to Unrelated Bugs 昆虫捐献DNA给无关的虫类 You can thank your parents for your DNA. Because humans share genes through sexual reproduction, passing DNA from parent to child. It's known as the 'vertical transfer' of DNA. No

发表于:2019-02-13 / 阅读(32) / 评论(0) 分类 2018年科学美国人2月

汉字是由笔画构成的。笔画是书写工具在书写面上的运动,大概有三十种不同类型,有些是基本笔画,有些是复杂笔画。笔画对学习汉字以及书法都有重要作用。下面分别说明。注意,笔画的

发表于:2019-02-14 / 阅读(48) / 评论(0) 分类 英文语法词汇

Just as humans understand the shape of oursurroundings by how light reflects off objects, batsuse reflections of sounds they produce insteadwhat's called echolocation. But despite theirexcellent sensing abilities, one type of obstaclevexes the animal

发表于:2019-02-14 / 阅读(38) / 评论(0) 分类 2018年科学美国人1月
学英语单词
-tony
abounding
aemilius
air defense area
antenna effective area
AT-4140
auvergnats
baby's-slippers
bathroom cleaner
begin on
biotropism
Bouxieres
Bow bells
Branthwaite
building-up period
burdensomenesses
Byelorus, Byelorussia
central refrigeration plant
chart number
chimerically
collapsing cloud
cyclocompounds
dancing frog
deseasonalizing
direct and indirect process costs
double calculation
double-secondary transformer
drinkably
dubailand
elbow pipe welder
engine tractor
eupatorium rugosums
ewigkeit
excisionase
extrasyllabic
fall to someone's lot
fire protecting test
fish bone
fishing account
Fosfabion
fulvoplumerin
gammagram
glycollic acid
gogat
gomdura
Goshute L.
Grey's Anatomy
heterotopic small intestine transplantation
highhandedly
Jurinea lanipes
juz
launching curves
Lekeitio
ligaments of head of femur
maneuvering ballistic reentry vehicle
maxoptix
measuring and weighing room
MEDCOM
modulus of compression
mud mat
musqueet
neutron death
next of kin / associated parties employee number
Nocardia farcinica
nonrunic
novelty yarn
number of drilling lines
offshore purchases
Palparara
perigee-to-perigee period
petro-dollars
petroleum odour
phase-out
pressure-controlled water valve
primary crater
pseudocolouring
Pyrus bretschneideri Rehd.
quartz (crystal) filter
radio light vessel
radio-active decay
radioactive density gauging
reallification
renewal of component
retrograde aortography
sand jet
Scytopetalaceae
shipbuilders
sidearming
smallerer
sophismata
speakerines
splaying arch
stringency
sunken track
system of rotating axes
Tengrian
Thomas Cup
tocky
Toynbee's muscle
water-skater
wave structure
woodpusher