單項(xiàng)選擇題蔗糖是由葡萄糖()失水相結(jié)合

A.C1OH與果糖的C1OH
B.C1OH與果糖的C2OH
C.C4OH與果糖的C2OH
D.C1OH與果糖的C4OH


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1.單項(xiàng)選擇題L-(-)-葡萄糖手性碳的絕對構(gòu)型是()

A.2R,3S,4R,5R
B.2S,3S,4R,5R
C.2S,3R,4S,5S
D.2S,3R,4R,5S

2.單項(xiàng)選擇題D-(+)-葡萄糖手性碳的絕對構(gòu)型是()

A.2R,3S,4R,5R
B.2S,3S,4R,5R
C.2S,3R,4S,5S
D.2S,3R,4R,5S