青岛市2014
高考英语阅读理解、完形填空及阅读类训练（18）（答案及解析） 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
