[电] 声抗

When Pablo Panda Sandoval made history with 3 home runs in game one of the world series his head was probably buzzing. But when batters in chilly Detroit had the ball not quite right in the next couple of the nets, it will be their hands that buzzing

发表于:2018-12-24 / 阅读(185) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-second Science. I'm Steve Mirsky. Got a minute? Can you name those notes? Probably not. Perhaps one in ten thousand speakers of European languages has perfect pitch - the ability to recognize a note without having hea

发表于:2018-12-24 / 阅读(228) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. If you ever got picked on in the schoolyard, you might have wished for some sort of superpower, like unbeatable speed or maybe just the ability to completely disappear. Now scientists

发表于:2018-12-24 / 阅读(207) / 评论(0) 分类 Scientific American(五)月

Scientists analyzed around 2,500 of those calls, and found that the second part (sound) is nearly identical in pitch every time from each whale: 16 hertz, or four octaves below middle C. And the slight variations in frequency that do exist are only a

发表于:2019-01-02 / 阅读(218) / 评论(0) 分类 60秒科学

Hybrid cars are good for the environment. But scientists say that they might be bad for pedestrians. Because hybrids are so quiet, it can be hard for walkers to hear them until its too late. Listen to this. [quiet car sound] Thats a Toyota Prius mov

发表于:2019-01-02 / 阅读(243) / 评论(0) 分类 60秒科学

Can you name those notes? Probably notperhaps one in 10,000 speakers of European languages has perfect pitch, the ability to recognize a note without having heard any reference note first. But theres a much better chance you could successfully name

发表于:2019-01-02 / 阅读(245) / 评论(0) 分类 60秒科学

If you ever got picked on in the schoolyard, you might have wished for some sort of superpower: like unbeatable speed or maybe just the ability to completely disappear. Now scientists at the College of Wooster in Ohio say that you might have had a s

发表于:2019-01-02 / 阅读(280) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Every year, scores of manatees are killed by boats in Floridas waters. Their plight is an ecological concern. And everyone from marine biologists to Marg

发表于:2019-01-08 / 阅读(223) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Hybrid cars are good for the environment, but scientists say that they might be bad for pedestrians. Because hybrids are so quiet that can be hard for wa

发表于:2019-01-08 / 阅读(212) / 评论(0) 分类 Scientific American(五)月

We humans are pretty good at communicating with sounds other than words. But how much of this is hard-wired, and how much do we pick up from others? To find out, researchers recorded the nonverbal sounds of people born deaf, as they responded to a ra

发表于:2019-01-08 / 阅读(289) / 评论(0) 分类 Scientific American(十一)月

Blue whales off the California coast make calls that, sped up 10 times, sound like (sound of two-part call). The original is a wall-rattling frequency too low for us to hear. Scientists analyzed around 2,500 of those calls, and found that the second

发表于:2019-01-08 / 阅读(199) / 评论(0) 分类 Scientific American(八)月

Country Music Ladies Put Men in Their Place American country music lyrics often describe women as they might appear in mens dreams. This is especially true of songs by many male artists. But the songs by Maddie Marlow and Tae Dye are different. The t

发表于:2019-01-12 / 阅读(230) / 评论(0) 分类 2015年VOA慢速英语(九)月

Boston Symphony Makes Music in Mountains When Serge Koussevitzy, the Russian-born conductor of the Boston Symphony Orchestra, opened Tanglewood in 1937, he chose an all-Beethoven program, including the Pastorale Symphony. When conductor Christoph von

发表于:2019-01-13 / 阅读(180) / 评论(0) 分类 VOA标准英语2012年(七月)

By Alisha Ryu Nairobi 18 November 2009 A U.S.-flagged container ship which was hijacked by Somali pirates seven months ago has been attacked again off the coast of Somalia. Pirates were unsuccessful in their second attempt to hijack the Maersk Alaba

发表于:2019-01-14 / 阅读(221) / 评论(0) 分类 VOA标准英语2009年(十一月)

The Tiangong-2 space lab, though adopting the structure of Tiangong-1 without too many changes in appearance, has been designed to function much stronger than its predecessor. Zhu Congpeng, chief designer of the lab, says they've focused on a variety

发表于:2019-01-19 / 阅读(221) / 评论(0) 分类 2016CRI中国国际广播电台

Ross Dunn The Palestinian leadership reacted strongly to statements by President Bush implying Israel has the right to retain some Jewish settlements in the West Bank . Senior Palestinian officials ar

发表于:2019-01-30 / 阅读(193) / 评论(0) 分类 VOA2004(上)--各类新闻

By Jim Randle Irbil 10 October 2007 Iraqis are reacting angrily to the shooting on Tuesday of two women in Baghdad by foreign security contractors, the second such shooting in the past month. VOA's Jim Randle reports from northern Iraq. Guards workin

发表于:2019-02-03 / 阅读(176) / 评论(0) 分类 2007年VOA常速英语(十月)

通知与确认 Acknowledgments Confirmations 通知对方接到来信Acknowledging receipt of letters1. Dear Mr/Ms,Thank you for your letter No. A-3 of 6th May, offeringus 6 UI-4 Viewdatas. We have passed it on to ourTechnical Department for their c

发表于:2019-02-06 / 阅读(250) / 评论(0) 分类 实用英语

By Dan Robinson Washington 17 July 2007 Majority Democrats and opposition Republicans in the U.S. Congress focused on the fight against terrorism Tuesday as they debated the latest government report on the threat facing the country. As Dan Robinson r

发表于:2019-02-07 / 阅读(250) / 评论(0) 分类 2007年VOA标准英语(七月)

Both major U.S. presidential candidates and their running mates reacted Monday to the financial turmoil on Wall Street in the wake of the bankruptcy announcement from the investment bank Lehman Brothers. As VOA National correspondent Jim Malone repo

发表于:2019-02-11 / 阅读(205) / 评论(0) 分类 VOA标准英语2008年(九月)
学英语单词
)(hazardous locations (classified)
a case - by - case basis
abdominal rings
adipoid
aging test machine
alarm line
alhpa olefin
alre
antijam
Ardara
Asteroxylaceae
behavioral-institutional juxtaposition
black lave
cash-deposiit ratio
cd-quality
cerise glass
chinese commodities available for export
chlorite schist
choice morsels
cleanablity
collitigant
come to a stop
community-facilities plan
crystal rash
dangerous cross-section
Desnogorsk
diethyl oxalate
downward bulge
dust agglutination
edb
electronic controlled intermittent tractor
Entoconchidae
exclusion area
extension ratio
fine quality
fungus of the brain
graphic analysis of cost variability
hair hygrograph
host foctor
hydro-ski vehicle
Ilimaussite-(Ce)
ingrates
inquiry display terminal unit
insecticidal action
interrogation hole
jaff
kasubi
land increment value duty
liberalised
line conches
lipophilic cell
long arc
marine range
marking needle handle file
micky fickies
milkfat percentage
money paper
mountain rye
mulesing
narrow-line spectrum
net differential cost
neutralization
noncharismatic
organizational planning
overseas operation
parabolic matrix
pigmented cosmetic dermatitis
pipe her
practical collocation
pulse converter
radius head
RE number
renigging
resmethrin
sample jar
scolecites
security deposits
semi-diffusion
semiscale
sequential circuit with memory
shortsighted
single drive floppy disc system
single station
slave robot
slop padding
sound-images
speech hearing level
stop with
Sukow
synovial cell
take a noble part
tamia
tammuzs
Thien Nghia
transition symbols
unbonded silica sand
velocity shock
viperal
winter rue
Wonder Women
would be late for one's own funeral