Tag: created
1. According to a set of 1 to 7 numbers randomly arranged, write 16 numbers, 1 represents the lowest sound, 7 represents the highest sound. For example: 1535153526462646. (2 mins)
1. According to a set of 1 to 7 numbers randomly arranged, write 16 numbers, 1 represents the lowest sound, 7 represents the highest sound. For example: 1535153526462646. (2 mins)