Most of _______ houses in that villages look like _______ houses in _______ ancient China.

A．the; the; the

B．the; the; /

C．the; /; /

D．the; /; the

颌下腺摘除术中，下列哪些结构必须注意不可损伤（）

A.颌下腺导管

B.舌神经

C.颌外动脉和面前静脉

D.面神经下颌缘支

E.舌下神经