When the frequency of a sound is between 30000 Hz to 40000 Hz, which one of the following can hear it? (You can choose more than one answer. ) ( )
A、 Dolphins
B、 bats
C、 dogs
D、 Humans分值:2]
发布时间:2025-08-14 15:05:54
A、 Dolphins
B、 bats
C、 dogs
D、 Humans分值:2]