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【单选题】
下列单糖中哪个是酮糖A.
核糖
B.
半乳糖
C.
葡萄糖
D.
果糖
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】Long ago, operation usually had to be done while the sick man could feel everything. The sick man had to be held down on a table by force while the doctors did their best to save him. He could feel al...
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【简答题】阅读理解 In recent years advances in medical technology have made it possible for people to live longer than in the past . New medicines and machines are developing every day to extend life. However, some...
【简答题】阅读理解 In recent years advances in medical technology have made it possible for people to live longer than in the past. New medicines and machines are being developed every day to extend life. However, ...
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