So far this year, no measures _______ against cruelty to animals despite their protest in the

newspaper.

A．have taken

B．have been taken

C．had been taken

D．had taken

腰椎侧隐窝的后界是（）

A.上关节突

B.下关节突

C.椎体后缘

D.椎板

E.椎弓根