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President Obama has ended a historic visit to Cuba by addressing its citizens directly in a live television broadcast in which he urged them to embrace economic and political change. We get more details from Will Grant who is in Havana. For so long, Cubans were told that their biggest enemy was the president of the United States. So to see him address them live on state television must have felt like a true change had already come to the island. President Obama didn't waste his opportunity either. He began by saying he had come to Cuba to bury the remnants of the cold war in the Americas to rapturous applause. But it wasn't just about Washington's mistakes in the region. He didn't shy away from the uncomfortable issue of human rights in Cuba either. Citizens should be freed to speak their mind without fear to organize and criticize their government, he said.
参考答案：CD