未知题型 What does the author say about the poor in America?A．Their living standards have actually improved.B．Most of them are immigrants and their descendants.C．Their chances of rising above the poverty line are slim.D．Most of them rely on government subsidies for survival.

判断题 事件的概率不仅由事件本身决定，而且还与我们用什么方法求有关。()

未知题型 What does the author want to say by quoting Daniel Moynihan?A．Economic equality is but an empty dream.B．Political neutrality can never be achieved.C．The administration's statistics are biased.D．The debate over poverty will get nowhere.