太阳黑子

And after a while a pattern emerged. 久而久之,人们就归纳出一个模式 If you observe sun spots over several years, 若连续观察太阳黑子好几年 they come and go with an about an eleven year cycle. 会发现它们约每隔11年会周

发表于:2018-12-07 / 阅读(187) / 评论(0) 分类 太阳科普

Sunspots 太阳黑子 Is every part of the sun equally hot? 太阳的各个部分都一样热吗? No, they aren't. Some parts are colder than other parts. 不是的。有些地方比其他地方冷。 How do we know that fact? 我们是如何知道这

发表于:2019-01-10 / 阅读(170) / 评论(0) 分类 与美国小学生一起学英文第10册

By David McAlary Washington 07 March 2006 NCAR scientists Mausumi Dikpati (left), Peter Gilman, and Giuliana de Toma examine results from a new computer model of solar dynamics Researchers predict tha

发表于:2019-02-04 / 阅读(176) / 评论(0) 分类 2006年VOA标准英语(三月)

16. UPBRAlD : REPROACH :: (A) dote : like (B) lal: : stray (C) vex : please (D) earn : desire (E) recast : explain Directions: Each passage in this group is followed by questions based on its content.

发表于:2019-02-21 / 阅读(255) / 评论(0) 分类 实用英语
学英语单词
all-clad
annex
arbores
array element value
audio communication device
balance delay
batch sequence number
be impatient of
Bechterew's symptom
bioluminescences
Bridgman equation of state
broomie
btacing of still
burramys parvus
C
Carson County
castable rubber
Castanopsis delavayi
caught with one's hand in the cookie jar
Cibalgin
Cinkassé
clintonias
collision of first kind
collisional bremsstrahlung
Companies Court
constant pressure gas burbine
Credit Standards
critical vertex
crockeryware
crude rate of natural increase
diff
ditty boxes
dollars to buttons
erythrina alkaloid
ethylphenyltriethyl silane
excitable state
faciolingualis
foreshore flats
george vancouvers
giga-candelas
gross contamination
hand sale
infecting potential
judicial divorce
latent tetanus
liner ship
locator device
long-probability curve
lunella coronata
mark signature
Medical Records
Methylnonylketone
metric systems
MFC Library
microcardia
mixed crystals
mobile lavatory
Morellian
n-phenylsuccinamic acid
noctivorous
ocher codon
open-government
partial protein
payment of postage
pleating of levator palpebrae superioris
polyp of breast
re-allying
recallists
recker
regressive scale
repulsive forces
root-mean-square voltmeter
rope lever block
s-o
sapphite
shielding barrier equipment
short-change
signal specification
skid preventation
snub the chain
sodaless
spoilter
Ste-Lucie
strong base
suspension access
third-order hexagonal bipyramid
Timurid Dynasty
toroid shell
tractates
transitive verb
tridecene dicarboxylic acid
tuner-timer
turn out in the cold
U-shaped shackleU
universal sttachment
user aided system
vanishingly
vilsons
water supply fire tanker
world textiles
xerosis pilorum
yows