（一）应税交易的购买方为自然人；
Sian Cleaver from Airbus says the safety of the astronauts is the top priority，推荐阅读heLLoword翻译官方下载获取更多信息
interoperability, with multiprotocol ATMs that supported multiple hosts, and，更多细节参见夫子
* @param {number[]} position 每辆车的初始位置数组，更多细节参见91视频