With no rain for three months,and the food supplies running out,the present          here is getting worse.[ ]

A. case        

B. condition      

C. state  

D .situation

在下颌体外面可看到的结构不包括（）。

A.正中联合

B.颏结节

C.上下颏棘

D.外斜线

E.颏孔