肾上腺素的结构式是

A、[img=~/QImg/Tiles/YA55_47_43_
A、gif]
B、[img=~/QImg/Tiles/YA55_47_43_
B、gif]
C、[img=~/QImg/Tiles/YA55_47_43_
C、gif]
D、[img=~/QImg/Tiles/YA55_47_43_
D、gif]
E、[img=~/QImg/Tiles/YA55_47_43_
E、gif]