Movement from bottom to top, from poor to rich, was rare, even movement from poor to middle
class was (i)_____. Statistical analysis of trends in occupation, income, and property ownership,
Thernstrom wrote, “yielded rather (ii)_____ conclusions about social mobility in nineteenth-century America.” So we might expect Thernstrom to be suspicious now of claims that differences in class could be (iii)_____ if only the public schools did a better job.
答案：A,E,I