— Can your father drive?

— Yes, and he _____ to work every day. [ ]

A. is driving

B. drove

C. drives

D. has driven

多潘立酮发挥胃动力作用的机理是：

A．激动外周多巴胺受体
B．激动中枢多巴胺受体
C．阻断外周M受体
D．阻断外周多巴胺受体
E．阻断中枢多巴胺受体