皮皮学，免费搜题
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【单选题】
土豆受到机械损伤容易发生褐变,这种褐变属于A.
酶促褐变
B.
美拉德反应
C.
焦糖化反应
D.
Vc褐变
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
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B.
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D.
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【简答题】小题1:How much are the musical tickets for two children? A. 16 pounds, B, 35 pounds. C. 30 pounds. D. 40 pounds. 小题2:When will the age Drawing Competition be held? A．On June 7th. B．On...
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【单选题】游湖时,有位游客提出希望自己划小船,并承诺责任自负,对此导游员的正确做法是( )。
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