Critics Say Venezuelan Protests Test Limits of Military's Support 批评家称委内瑞拉抗议考验军方支持极限 During the two months of deadly anti-government protests that have rocked the oil-rich nation of Venezuela, President Nicolas Mad

发表于:2018-12-16 / 阅读(56) / 评论(0) 分类 VOA标准英语2014年(四月)

Energy Production Facing Limits of Water Scarcity发电面临用水危机 Nearly all forms of energy production use large amounts of water. Coal, which generates nearly 50 percent of the electricity in the U.S., needs water for mining and transport,

发表于:2019-01-13 / 阅读(82) / 评论(0) 分类 VOA标准英语2012年(一月)