The difference between the resulting equations for a network in which an npn transistor has been replaced by a pnp transistor is（）.

The difference between the resulting equations for a network in which an npn transistor has been replaced by a pnp transistor is（）.
A.the values of the resistors
B.the value of β
C.the sign associates with the particular quantities
正确答案：the sign associates with the particular quantities