2013
高考英语阅读理解指导与训练（2）答案- 购物、饮食与健康 *********************************************************结束 c words：327 难度系数：★★★ 建议用时：9分钟 when one thinks of the expansion of the american west，the event most likely to come to mind is the california gold rush of 1849.however，there remained wide land between the pacific coast and，say，st.louis，missouri.why mentions.st.louis? you might be asking.because the young united states started exploring the vast land mass to the west from that very point and almost fifty years before those gold nuggets started hitting the pan in california. in 1803 president thomas jefferson sent a secret message to congress calling for an expedition into the area west of the mississipp
