[计] 纵横奇偶校验

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
'Alīābād, Dasht-e
a-starboard
acquirable
aeronautical charts
al sunna wal jammas
alternating current voltemeter
antibody capture ELISA
antiepics
Astralene
atmospheric chlorine detector
aungele
autogentic process
blocking stake
bulgarane
Cello Cello
Collerina
combined electrical apparatus
constant false alarm rate
contrapuntist
converter punch tape
couronnement
Dangkal, Kep.
delopes
dinsidon
draft test
employment experience
empty words
endophloid
engine-room discharge pipe
epioestriol
equalizing differences
erythric
ette
evaluation of predicates
family thelypteridaceaes
fuel ash deposition
grays
hand-knitted
have a temper
heteromorphic transformation
HNLN
hopper bottom
hydrogen autunite
hypolipaemia
infrahyoid muscle
intrinsic damping
KIlobyte
lamster
lands up
light-chain proteinuria
linear tape
Linke-scale
liquid flux cover
Litsea morrisonensis
Lobo Prieto, Cerro
lymphocytotoxic
Martin, Frank
mesectic
methanethiosulphonate
microarray
microcontaminant
Microula floribunda
musculus lateralis infer.
neurohypophysial
noing
non-coll
nrao
numeric space character
officiating in athletic and sports
on invitation
Ozernoy, Poluostrov
PMAP
principle of observability
repressed memory
restaurant contractor
rhenium trioxide
salivary chromosome
schizoid type
seciality
serayn
settle blow
severe emotional disturbance
signeur
sikhest
silencer-boiler
skiagrams
skywriter
solution apray
starboard sidelight
strata externum
straw wall picture
T Tauri star
temperure
tert-butyl amine
tilted bottle
trru
type of rapid transit construction
Ubaina
uranium ethoxide
vacuum tube circuit
wambach
woer