未知题型 William Frey believes thatA．people in southern states would not lose their homes until 70s.B．people in expensive states would lose their money more quickly.C．young people and immigrants hardly increase in the rustbelt areas.D．elderly people would not like to retire in Florida and Arizona until 70s.

判断题 领导体制所涉及的核心问题是如何划分领导权的问题。()

未知题型 In the first paragraph, the author holds thatA．immigrants are disappointed again by the side effects of the reform.B．US government is expected to advance the immigration reform.C．immigration reform. will contradict current laws and rules.D．immigration reform. is welcomed by every social group.