2014
高考英语阅读理解精英训练二轮精品题（7）及答案阅读理解------a the cave crawler mining robot why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world? it’s an increasingly urgent question ,given the recent high-profile(引人注目的)mining accidents in sago, w. va., and huntin gto
