—That actor often joins in different activities in Beijing. Do you know ________?

—For 5 years. [ ]

A. how soon he will come back

B. how long he has stayed there

C. when he went there

D. when he will come here

头痛绵绵时发时止，遇劳加剧，神疲乏力，食欲不振，畏寒气短，苔薄，脉细无力。辨证为

A．肾虚头痛

B．风热头痛

C．风寒头痛

D．气虚头痛

E．血虚头痛