“企业的私有制向社会主义所有制转变，这在世界上早就出现过，但采用这样一种和平方法，使全国工商界都兴高采烈来接受这种改变，则是史无前例的。”“和平方法”指的是(   )

阅读理解。

    Amy and Sarah are good friends. They are from America. They like winter in America because there are many activities in winter. They can make a snowman,go fishing and go skiing with many friends. There are two festivals (节目) in winter. They're Christmas Day and Thanksgiving. Amy and Sarah are very happy. But they're in Beijing now. They like winter in Beijing, too. Because It's beautiful. It's windy and cold. They're going to visit the Great Wall, so they're very happy.