A:人的听觉频率范围是85~1100Hz
B:狗的听觉频率范围是15~50000Hz
C:蝙蝠能听到次声波
D:大象能听到超声波
— It's said that a robot called Alpha. Go won the competition over a Korean player in March.
— ________ amazing news! I can't believe!
下列有关溶液的说法错误的是( )