English oppression and the Potato Famine drove 1.5 million Irishmen from their homelandto the United States in the period between（ ）.
A.1810 and 1820 B.1845 and 1854 C.1860 and 1890 D.1965 and 1970正确答案B
English oppression and the Potato Famine drove 1.5 million Irishmen from their homelandto the United States in the period between（ ）.
A.1810 and 1820 B.1845 and 1854 C.1860 and 1890 D.1965 and 1970正确答案B
