苏合香的功效是( )

A．开窍醒神，活血通经，消肿止痛
B．开窍醒神，清热止痛
C．开窍醒神，清心化痰
D．开窍醒神，化湿和胃，宁神益志
E．开窍醒神，辟秽止痛

—Look！Here comes the bus and I have to go now. Thank you for coming to see me off.

—Goodbye，and______！  

A．congratulations

B．all the best

C．cheer up

D．go ahead