根据以下资料，回答下面试题。
Families separated by the Florida Straits were overjoyed Tuesday and Miami-based charter companies rushed to add seats and flights to their Havana routes after the Obama administration decided to let more Americans visit Cuba as often as they want, and spend as much as they like.
The policy changes are sure to put more money into Cuba's dying economy, and many would-be travelers are already call for still more barriers to fall. Even Fidel Castro (菲德尔•卡斯特罗) , who had belittled the changes Monday, yielded Tuesday that they were "positive, although minimal".
The United States still doesn't let most Americans without ties to Cuba visit the island or send in money.But the change, announced Monday by the Obama administration, was among the most significant openings in the half-century of hostilities between the two countries.
During the Bush administration, Americans with immediate family members on the island could visit once every three years and send up to $100 a month to their families.
Now, there are no limits to travel or expense, and the definition of family is expanded to include relatives as distant as second cousins, as well as anyone else who lives as "family" in the home of the authorized traveler.
40.According to the article, what will this change in policy do for Cuba?
A. It will boost the Cuban econom
B. It will help defeat Fidel Castr
C. It will make more Cubans come to the United State
D. It will decrease the number of Cubans coming to the United State
答案：A
解析：这篇文章说奥巴马政府改变了政策，允许更多的美国人探望古巴人。第二段第一句：政策的改变会改善萧条的古巴经济。这里主要讲的是与古巴人有亲属关系的美国人去古巴，而不是古巴人来美国。
41.Under the new regulations, how often are Cuban-Americans allowed to visit their relatives in Cuba?
A. As often as they lik
B. Once every three year
C. Once a yea
D. Twice a yea
答案：A
解析： 第一段。美国人可以想什么时候去古巴就什么时候去。
42.How long have Cuba and the United States maintained a "hostile" relationship?
A. About 20 year
B. About 30 year
C. About 40 year
D. About 50 year
答案：D
解析： 第三段。奥巴马政府所给的这个变化为两个敌对了半个世纪的国家打开了大门。半个世纪为50年。
43.Under George W.Bush, how much money could Cuban-Americans send to their family members?
A. As much as they wanted
B. Up to $100 a mont
C. Up to $100 a yea
D. Up to $100 every three year
答案：B
解析： 第四段。布什政府时期，两边的亲友每三年探望一次，每月可寄给古巴亲友100美元。
2017成考试题：2017年成人高考专升本英语考试备考试题及答案
2017成考报名：2017年成人高考报名时间/入口
