—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

玉米萌发时其胚会先产生下列何种激素以促进萌发[ ]

A．生长素

B．甲醛

C．赤霉素

D．细胞分裂素