How did the table tennis host and guest teams come into being?

Draw lots. The home team and the visiting team in the table tennis team competition are decided by drawing lots between Team A and Team B. If Team A is the home team, then Team B is the visiting team. If team B is the home team, then team A is the visiting team. The table tennis team competition adopts the best of five games (five singles) in the competition method of the world championship table tennis team competition rules.