比较优势是指一个国家在特定产品或服务上的相对优势,而绝对优势是指一个国家在所有产品或服务上的绝对优势。比较优势在贸易决策中更重要,因为它可以帮助一个国家利用其特定产品或服务的优势来获得经济效益,而不需要依靠其他产品或服务。此外,如果一个国家拥有特定产品或服务的相对优势,则可以通过向其他国家提供这些产品和服务来促进其整体出口水平。...
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了,有时候甚至声音都会变得很小。 Speaking naturally is normal, but when talking into a microphone, people get nervous and their voices sometimes become very soft. To overcome this, practice speaking in front of a mirror or with friends. Try to relax and take deep breaths before speaking. Also, make sure to speak s...<未完>点击进入
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