Throughout the year over two million people are expected to directly ___ Japan 2005,a series of festivals and performances taking place around the country.

A．visit

B．participate in

C．involve

D．come to

咽后间隙的描述正确的有（）。

A.位于椎前筋膜与颊咽筋膜之间

B.上界起自颅底

C.下达一、二胸椎平面

D.两侧以薄层筋膜与咽旁间隙相隔

E.儿童时期该处淋巴结炎常引起咽后脓肿