Asymmetry
in the structure of the plasma membrane is reflected in
选项：

A:differences in
the lipid composition on the inner and outler leaflets of the bilayer
B:presence of
carbohydrate attached to lipid and protein on the outer surface but
not the inner surface of the plasma membrane
C:presence
of specific kinds of lipid-anchored proteins only on the cytoplasmic
surface
of the plasma
membrane
D:all of the above