Are you Chinese or American?Chinese American前为何不加the或其他冠词

Are you Chinese or American?Chinese前面为什么不用冠词呢? 为什么Hello are you Chinese?No,we are American.中的American不用加s,不 I am Chinese / She is American 不需要加冠词吗? are you american or english为什么不加an 应该是are you american还是在american前加an? both the chinese family and the american family are smaller what are the differences between Chinese and American table What are the differences between American and Chinese Cultur Chinese前什么时候加冠词 是American Chinese还是 Chinese American? American-Chinese和Chinese American一样? Chinese.English.American表示国籍单独使用时,可以加冠词吗?