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【多选题】
关于茚三酮反应说法对的是A.
反应需要加热和弱碱性条件
B.
在一定范围内，茚三酮反应所产生产物的颜色与氨基酸或蛋白质的浓度成正比的
C.
脯氨酸和羟脯氨酸的茚三酮反应产物是黄色的
D.
氨基酸和蛋白质都可以发生茚三酮反应
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【单选题】As we came into the supermarket, I got_____ from my parents.
A.
separated
B.
divided
C.
spared
D.
missed
【简答题】____________ (你们收取多少钱) a double room?
【简答题】本年投产项目个数的增长速度是： A.A.78．8％ B.B.-78．8％ C.C.21．2％ D.D.一21．2％
【简答题】自助餐你们收多少钱?How much do you ____for the buffer?
【单选题】The Hero My mother's parents came from Hungary, but my grandfather could trace his origin to Germany and also he was educated in Germany. Although he was able to hold a conversation in nine languages,...
A.
In Germany.
B.
In Hungary.
C.
In the United States.
D.
In New York
【简答题】人教版九年级上册数学习题21.2答案
【简答题】你们收多少钱?
【简答题】你们洗一部车要收多少钱? How much do you ( ) for washing a car?
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