CH2OH CHO 0 、H HO 9H a-D葡萄糖 H OH OH HO H H OH H OH CH2OH H OH CH2OH HO OH HH BD葡萄糖 H OH   H CHO OH OH OH CH2 OH H H H HO H O OH H OH H H OH H CH2 OH HO H OH H OH H H OH H CH2 OH HO -D-葡萄糖 -D-葡萄糖 O