na. 几何级数
[网络] 几何级数增加;数列与级数;等比级数

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(178) / 评论(0) 分类 数学英语

托福阅读的考察特点是比较明显的,虽然其选文都是科普文或者其他学术性文章,但是却不考察学术概念本身,而将考察重点落脚在常见词汇以及常见表达上。有很多考生对于这一特点并不熟

发表于:2018-12-19 / 阅读(174) / 评论(0) 分类 新托福写作真题解析

by Jason Marshall In the last article, we began talking about mathematical sequencesin particular, a type of sequence known as an arithmetic sequence. Today, were going to turn our attention to another type of sequence called a geometric sequence. In

发表于:2019-01-02 / 阅读(209) / 评论(0) 分类 数学英语

By Zulima Palacio Santa Fe, New Mexico 27 August 2007 The western U.S. state of New Mexico has 19 Pueblo tribal communities, some of them among the oldest American Indian settlements in the United States. Many of them are well known for their pottery

发表于:2019-01-13 / 阅读(235) / 评论(0) 分类 2007年VOA标准英语(八月)
学英语单词
Abe Lincolns
absolute warranty
adaptative regression
alterative
animatedly
ariluss
association indexing
auxiliary rope-fastening device
axial trace
azeriss
badly formed expression
ballet philippines
beach-nourishment
bed course
bilitis
bldg.
Boulder Junction
box spanner
Breschet's sinus
buma
capercailzies
conglomerate merger
conprove
covering group
Coyville
curing core
current file
cystic endometrial hyperplasia
demosaics
design standard of large dams
destructive pitting
divider chain
dog tied up
dossou
doubloonie
draw tongs
ecological race
emissions
entrance route
falling test
feel-good hit of the summer
Friedel's law
genus Potamophis
insert and paste selected cells
intercrystabline failure
intermediate strip pack
Japanese organizations
laitmatophobia
laparotomizes
looper shaft set collar
lunatic's ball
malignant pustules
mashing up
mates' rates
maximum demand meter
misadministration
mnesiloba dentifascia
nebulise
needle-catching forceps
next-record
on beat
orientation preserving mapping
particular integrals
penalty function algorithm
playleader
pnotohalide
Poincon-lès-Larrey
port landing light
potato witches-broom virus
premenopause
pseudo-polyploid(battaglia 1956)
purely imaginary numbers
pyencephalus
quill-drive
radio-echo detector
real project
reassessment
red weakness
reduced ejection period
resin-rich area of composite
rest-days
roll plate
schero-oothecitis
schmalzier
senza
sheeb
single lip wiper
small-ensemble
sodium peroxoniobate
stalant
stereo-acuity
stramonium poultice
Teall I.
teflon insulation
tetracycline hydrochloride
three-pulse cascade canceler
Tricylagol
vauquelin
vehicle weight fully equipped
winterbottoms
woodworking machine
zero cross