Which way do you enjoy _______ the coming winter holiday, staying home or going on a trip to Europe?

A．spending

B．spend

C．to spend

D．to be spending

下列各项中，产生二便失禁的病因是（）。

A.过度恐怖，恐则气下

B.过度喜笑，喜则气缓

C.过度愤怒，怒则气上

D.过度悲哀，悲则气消

E.过度思虑，思则气结