单词：Verdet constant
单词：Verdet constant 相关文章
STEVE EMBER: Im Steve Ember. BARBARA KLEIN: And Im Barbara Klein with EXPLORATIONS in VOA Special English. Today we tell about a large National Park established to protect the culture of ancient Native Americans. It is called Mesa Verde. (MUSIC) STEV
2011年VOA慢速英语(三)月
EXPLORATIONS - Mesa Verde National Park: Protecting the Culture of Ancient Native Americans STEVE EMBER: Im Steve Ember. BARBARA KLEIN: And Im Barbara Klein with EXPLORATIONS in VOA Special English. Today we tell about a large National Park establish
2012年VOA慢速英语(四)月
By Phuong Tran Dakar 16 February 2007 Carnival season is a time for music and revelry, and not just in Brazil. In Cape Verde, some musicians want to show that Brazil's famous carnival rhythms also have roots in Africa's musical history. Phuong Tran
2007年VOA标准英语（二月）
Business leaders in Cape Verde are responding to their country's ascension to the World Trade Organization. While business leaders agree the measure should enhance the competitiveness of the island nation, Brent Latham reports from our West Africa b
VOA标准英语2008年（七月）
By Phuong Tran Dakar 12 June 2007 The West African island nation of Cape Verde is working to change its rank as a U.N. designated lesser-developed country, but government officials say they need more help from donors. From VOA's West Africa bureau in
2007年VOA标准英语（六月）
By Phuong Tran Praia, Cape Verde 09 June 2007 Off the coast of West Africa, transport officials in the island nation of Cape Verde have begun a road improvement program. They say colonial-era cobblestone roads do not make much sense anymore, and are,
2007年VOA标准英语（六月）