Which is the correct description of the piano keyboard?
A、52 white keys;
B、36 black keys ;
C、The piano has 89 keys in total;
D、The piano has 88 keys in total
发布时间:2025-06-24 04:22:43
A、52 white keys;
B、36 black keys ;
C、The piano has 89 keys in total;
D、The piano has 88 keys in total