（三）居民委员会所有和使用的设施的管理使用情况；
Free tier available，这一点在服务器推荐中也有详细论述
EXAMPLE JSON OUTPUT:，详情可参考夫子
8) Can NFTs be used as an investment?Non-fungible tokens can be used in investment opportunities. One can purchase an NFT and resell it at a profit. Certain NFT marketplaces let sellers of NFTs keep a percentage of the profits from sales of the assets they create.