颈深淋巴结上、下群的分界是（）。
A.舌骨水平
B.颈动脉分叉处
C.二腹肌中间腱
D.间胛舌骨肌中间腱
E.间胛舌骨肌与颈内静脉交叉处
参考答案：E
There are 12 people but only 10 seats. Would you please ask for _____ more chairs? [ ]
A. some
B. 12
C. 2
D. 10
按地基处理的作用机理，如何对地基处理方法分类？
