手上的压力感受器(pressure receptor or mechano receptor)不能通过接触让人感知所持物体的( )。

A．behaviorism can＇t explain language
B．grammatical rules allow the speaker to generate sentences and the listener to understand them
C．grammatical rules are largely implicit to the speaker
D．a11 of the above

A．babies were born scared of fury animals
B．babies were born disliking loud noise
C．babies learned to fear
D．at birth．fear in different modalities(sight versus hearing)is independent to each other(i．e. does not transfer)