葡萄糖的 Haworth式 CH2OH CHoH OH H H OHOH H/OH OHOH H OH OH α-D-(+)-吡喃葡萄糖β-D-(+-吡喃葡萄糖葡萄糖的Haworth式 O CH2OH H H OHOH H H OH H OH O CH2OH H H OHOH H H OH OH H α-D-(+)-吡喃葡萄糖 β-D-(+)-吡喃葡萄糖