问答题 服务业跨国公司竞争优势的源泉有哪些？
问答题 请翻译如下一段话：TheliberalizationofinternationalservicetrademeanstheprocessduringwhichacertaingovernmentdropsoffthegovernmentaladministrativeintervenesintheflowofPerson\Capital\goods\informationamongcountriesthatisaboutserviceorservice-related,andderegulatestheforeigntradethroughlegislationandinternationalagreements.
多项选择题 《服务贸易总协定》对旅游和与旅游相关的服务为四类，它们是：（）