「表異構物」+1。下列何者互為表異構物(epimers)?(A)α-D-葡萄糖與α-D-核糖(B)α-D-核糖與β-D-果糖(C)α-D-葡萄糖與α-D-半乳糖(D)α-D-葡萄糖與β-D-葡萄糖.
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