单词:optical whiteness
单词:optical whiteness 相关文章
MICHEL MARTIN, HOST: And now to the civil rights phrase of this moment - Black Lives Matter. You'll see those words on T-shirts or on yard signs or billboards. It's easy to forget that something that's become such a part of a culture started just a f
LULU GARCIA-NAVARRO, HOST: Sarah Smarsh grew up in rural Kansas - the fifth generation to farm the same land, riding tractors where her ancestors rode wagons. There was never enough money and prospects were few. She was part of what has become popula
China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin