美国新任总统奥巴马上台，第一位黑人总统，他会带来什么不同以往的经历呢？听写提示：Guantanamo,  Lyndon Johnson, Lincoln Memorial
The United States got a new president this week.  President Barack Obama quickly got to work in his first days in office. In one of his first official actions, he ordered the closure of the American detention center at Guantanamo Bay, Cuba, within a year.  He also ordered a study of milita…