单词：ratio of specific heats
单词：ratio of specific heats 相关文章
Rovaniemi is certainly an out of the way area. It's hundreds of kilometers from most of Scandinavia's well known cities. But despite this, tourism is booming in the far north, despite austerity and financial crises elsewhere in Europe. Over half a mi
英闻天下
She worries a lot. She worries about polar bears. They are big, white bears. They live in the north. They need snow. They need ice. They need cold weather. There is too much pollution. Pollution heats up the Earth. Heat melts the ice. The ice is the
儿童英语小故事
图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
数学英语
图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt
数学英语
1. Sectarian violence rage s in Iraq. Gunmen killed 21 people in Iraq Sunday, including 12 students on their way to take exams. Militants also opened fire on a minibus carrying telecommunication emplo
美联社新闻一分钟2006
Cloud 云 A cloud is a massive droplets in the sky. 云是天空中大量的小水滴。 When the sun heats up the Earth, water on the Earth evaporates and becomes a cloud. 地球受到太阳的烘烤时，地球上的水就会蒸发并凝结成云。
与美国小学生一起学英文第7册
LONDON, July 30 (Xinhua) -- China's Ye Shiwen showed that her world record display in the women's 400 meters medley was no flash in the pan when she clocked the fastest time in the heats for the 200 meters event on Monday morning. The 16-year-old was
英语新闻
This is IN THE NEWS in VOA Special English. The November fourth presidential election in the United States is only about three months away. The two candidates are in a close race. Recent opinion studies show voters are most concerned about the econo
VOA慢速英语2008年（八）月
Kurdish Issue Heats Up Before Turkey's Parliamentary Vote With just weeks to go before Turkey's June 12 parliamentary vote, tensions are rising over Turkey's Kurdish minority's demands for the greater rights. The election campaign has already been ma
VOA标准英语2011年(五月)
The Forgotten Renewable: Geothermal Energy Production Heats Up MICHEL MARTIN, HOST: We're going to hear now about a different natural resource - geothermal reservoirs. They are all across the American West, and they could be used to power millions of
2018年NPR美国国家公共电台2月
The picturesque Western Cape mountain range at the southern tip of Africa lays claim to one of the world's most diverse floral kingdoms. And researchers are scouring the mountains in search of the droppings and urine of a small local inhabitant which
自然百科2009年
By Noel King Kigali 03 December 2007 Fighting has again erupted in eastern Congo's North Kivu province between forces loyal to dissident General Laurent Nkunda and the Congolese army. Noel King has more in this report from Kigali. Rebels and Congo's
VOA常速英语2007年（十二月）
WASHINGTON, June 26 (Xinhua) -- Both Ryan Lochte and Michael Phelps reached the semifinals of the men's 200m freestyle at the US Olympic swimming trials. Lochte, who beat Phelps in the event for the world title at Shanghai worlds last year, clocked o
英语新闻
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
英语新闻
Right now He's probably slow dancing With a bleached-blond tramp And she's probably getting frisky... Right now He's probably buying her some Fruity little drink Cause she can't shoot whiskey... Right now He's probably up behind her With a pool-stic
美国乡村音乐
By Anita Elash Paris 10 April 2007 The first round in the campaign for a new French president is in its final phase with candidates broadcasting their official campaign messages. Anita Elash reports from Paris. The 12 candidates in this race have bee
2007年VOA标准英语（四月）
This year, the United Nation's International Panel on Climate Change issued a series of reports that concluded there is no longer any doubt that human activities are causing the planet to warm up. The IPCC called for an immediate response from the in
VOA双语新闻 2008年1月
China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem
英闻天下
BEIJING, Jan. 05 (Xinhuanet) -- Tighter licensing and banning unlicensed food processors are two measures needed to improve the poor quality of cooked food in Guangzhou markets, says a new proposal. The proposal, to be presented to the Guangzhou comm
英语新闻
As Rio de Janeiro prepares for next year's Olympic Games the city , known for its beauty as well for its gap between rich and poor, is changing. As part of an attempt to integrate Rio, the government opened and artificial beach in Rio's poor north zo
cctv9英语新闻2016年