单词：RF (radio frequency)
线电频率，射频
单词：RF (radio frequency) 相关文章
Labour's Prime Minister Gordon Brown, right, Conservative Party leader David Cameron, left, and Liberal Democrat Party leader Nick Clegg, take part in Britain's third televised election debate in Birmingham, England, Thursday, April 29, 2010. British
发表于:2019-02-03 / 阅读(42) / 评论(0)
VOA标准英语2010年(五)月
VOA标准英语2010年(五)月
The U.S. Coast Guard has confirmed the first deposits of oil from the massive spill in the Gulf of Mexico have hit the shores of the southern state of Louisiana. The oil spill has local fishermen worried about possible contamination of their fishing
发表于:2019-02-11 / 阅读(70) / 评论(0)
VOA标准英语2010年(五)月
VOA标准英语2010年(五)月