—Who’s the little baby in the photo, Li Ying?

—It’s me. This photo _______ fourteen years ago.

A．is taken

B．took

C． takes

D．was taken

血压调节的压力感受性反射的感受器位于（）

A.延髓

B.心房内壁

C.心室内壁

D.颈动脉体和主动脉体

E.主动脉弓和颈动脉窦