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【单选题】
用含 18 O 的葡萄糖跟踪有氧呼吸过程中的氧原子, 18 O 转移的途径是 ( )
A.
葡萄糖→丙酮酸→水
B.
葡萄糖→丙酮酸→氧
C.
氧→氧→水
D.
葡萄糖→丙酮酸→二氧化碳
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