2014江苏省南京市
高考英语阅读理解巩固自练（1）及答案科普知识类阅读理解 the 2012 london olympics had enough problems to worry about. but one more has just been added—a communications blackout caused by solar storms. after a period of calm within the sun,scientists have detected the signs of a fresh cycle of sunspots that could peak in 2012,jus
