My mother always wants me _________ the violin. I don't like it at all(根本不).
A:learn to play
B:learn play
C:to learn play
D:to learn to play
已知点P是矩形ABCD内一点,连结AP、BP、CP、DP,若S△ABP+S△CDP=S△ADP+S△BCP,则关于点P的位置,正确的说法是( )