单词：commutative groups
[数] 交换群
单词：commutative groups 相关文章
THIS IS AMERICA - Girl Groups' in Rock Music By Robert Brumfield Broadcast: Monday, February 02, 2004 (THEME) VOICE: Welcome to THIS IS AMERICA, in VOA Special English. I'm Phoebe Zimmermann. In the l
This is America
Katia / Mexico speaker I prefer studying alone, because if I have to work on one particular issue, I stay as long as I need to, studying that part. So, I'd rather study by myself. Sunny / Korea speaker I think I prefer studying in groups, because I c
一起闲话英语-English Chitchat
by Jason Marshall Weve spent the last few articles building our numerical vocabulary from the ground up. Today, were going to talk about something that sounds hard, but is actually pretty easy...and very useful too: the commutative property of additi
数学英语
Too often young Somali-Americans have made news for all the wrong reasons. Some young people have fallen victim to drug abuse or the appeal of gang violence. Others have turned to extremist ideology. But youth organizations in the American state of M
2017年VOA慢速英语(四)月
AS IT IS 2014-09-04 Rights Groups: Thailand Suppresses Freedom Thailands military and police have stopped the release of an independent report on human rights. The report examines human rights in Thailand during the first 100 days under military rule
2014年VOA慢速英语(九)月
By Meredith Buel Washington 01 February 2006 An expert on global terrorism says there are now up to 40 groups around the world trying to imitate al-Qaida and virtually all of them are intent on attack
2006年VOA标准英语（二月）
Two splinter paramilitary groups in Northern Ireland have given up their weapons to an international commission monitoring what is known as 'decommissioning.' The two groups have for decades been waging an armed campaign against British sovereignty o
VOA标准英语2010年(二月)
Gay Rights Groups Push for Anti-Discrimination Laws George Ramirez and his partner German Roa have lived together for 16 years. Now, they are allowed to marry in Maryland, after voters there endorsed a law legalizing same-sex marriage. We want the op
VOA标准英语2012年(十二月)
Experts: Radical Groups Thrive on Popular Discontent WASHINGTON Islamist terrorism is surging in many places worldwide, including in Western societies. Governments are fighting to curb the spread of radical groups in the Arab world, and their influen
VOA标准英语2015年(五月)
RACHEL MARTIN, HOST: President Trump signed several executive orders yesterday. One of them was related to abortion. His order restored something called the Mexico City policy, which bars U.S. funding for any international aid group that provides abo
2017年NPR美国国家公共电台1月
AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster -- English teacher Lida Baker in Los Angeles talks about improving English pronunciation by understanding the idea of thought groups. RS: Thought groups are something we don't even
英语单词大师-Word Master
Voice 1 Hello. Welcome to Spotlight. Im Bruce Gulland. Voice 2 And Im Marina Santee. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 The sun sets ove
环球英语 Spotlight
Colombia's largest armed rebel groups, the FARC and ELN, have met to strengthen their unification process. In a statement, the FARC says incidents which led to the distancing between the groups have been overcome. The FARC has also stressed the need
世界各地新闻集锦
By Steve Herman New Delhi 03 September 2007 Two ethnic groups from southern Nepal are claiming responsibility for Sunday's deadly bombings in the Himalayan nation's capital. VOA's Steve Herman reports from our South Asia bureau in New Delhi. Nepalese
2007年VOA标准英语（九月）
By Nick Wadhams Nairobi 31 October 2007 About 40 international aid groups have issued a joint appeal to the international community about the growing humanitarian crisis in Somalia. As Nick Wadhams reports from Nairobi, the groups say that security h
2007年VOA常速英语（十月）
By Selah Hennessy Goma 22 December 2007 A summit has been called in the Democratic Republic of Congo (DRC) to try to bring peace to the war-torn country. Conference organizers say they hope the meeting will initiate a dialogue between the army, reneg
VOA常速英语2007年（十二月）
By Claudia Blume Hong Kong 16 November 2007 Hong Kong-based human rights groups who recently returned from a fact-finding mission to the Philippines found that the frequency of extrajudicial killings in the country has gone down. Disappearances, howe
VOA常速英语2007年（十一月）
By Noel King Kigali 19 October 2007 Congo's 2006 democratic elections were intended to usher in a new era of peace in the once war-torn nation. And while improvements have been seen in certain areas across the vast country, holdout armed groups in th
2007年VOA常速英语（十月）
Occupy Wall St which began in New York in September has spread around the world. By last Saturday, there were 2,668 groups in about 100 countries. Occupy protest groups have been in our main cities for the last six weeks but now councils are getting
新西兰英语
The practice of medical groups in China only emerged in recent years. It's when a number of doctors come together, they can carry out medical treatments independently, without being employed by any public or private hospital. Such a move is unconvent
cctv9英语新闻2016年