腋神经穿四边孔至肩关节后面，下面哪一种结构不参与四边孔的构成

A．肱三头肌内侧头

B．肱骨

C．小圆肌

D．大圆肌

E．肱三头肌长头

There are a few spelling mistakes; ______, it's quite a good essay. [ ]

A. even so

B. above all

C. if so

D. all in all