回家后，我把这段“不顺”的顺风车遭遇告诉爱人，说到气头上，我直言想投诉爽约的车主。“算了，车主也可能确实临时有事，既然已经顺利回到家了，就别再计较了。”他笑着说。
Who owns Blockchain?Blockchain is a decentralized technology. It’s a chain of distributed ledgers connected with nodes. Each node can be any electronic device. Thus, one owns blockhain.
。Line官方版本下载是该领域的重要参考
The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.
Yellow: Choices