In recent years travel agencies have succeeded in selling us the idea that ________, the better our holidays will be. 

A．we go the farther

B．the farther we go

C．the father we will go

D．the farther do we go

下列哪项与肝臭的发生密切相关

A．乙酰胆碱
B．鱆胺
C．甲烷硫醇
D．苯乙醇胺
E．谷氨酰胺