It is a long time since I last saw you . This sentence means _______

A．I had seen you for a long time

B．I have seen you for a long time

C．I haven’t seen you for a long time

D．I saw you again before long

心脏的神经支配是（）

A.交感神经和心迷走神经

B.自主神经

C.交感神经纤维

D.运动神经纤维

E.颈动脉