位于血管腔隙内的结构是()
A．股神经
B．股动脉
C．股静脉
D．大隐静脉
E．股管
参考答案：B, C, E
A．φA＞φB＞φC
B．EC＞EB＞EA
C．UAB＜UBC
D．UAB=UBC
After a long discussion, they ______ an agreement.
A．came up
B．came out
C．came across
D．came to
