The key  ________ the problem of traffic jams is to pay the "congestion charge" ________ by the

mayor of London. [ ]

A. to solving; introducing

B. to solve; introducing

C. to solving; introduced

D. to solve;  introduced

张某，男。16岁。煤气中毒后一个月，突发昏仆，肢体抽搐，口吐涎沫，约5分钟后神志转清，自述疲乏，舌苔白腻，脉象弦滑。该病例中医治法应为（）

A.理气化痰

B.涤痰熄风

C.平肝熄风

D.化痰开窍

E.化痰消饮