So much of interest ________ that most visitors run out of time before seeing it all.

A．offers Beijing

B．Beijing offers

C．does Beijing offer

D．Beijing does offer

由泽泻、木通、当归、黄芩、龙胆草、柴胡、生地、甘草、栀子组成的方剂是( )

A．导赤散

B．清骨散

C．凉膈散

D．仙方活命饮

E．龙胆泻肝汤