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【多选题】
薄层色谱检识黄酮类化合物时，常用的显色试剂有A.
2%三氯化铝甲醇液
B.
2%三氯化铁-1%铁氰化钾(1:1)水溶液
C.
5%碘化铋钾甲醇液
D.
2%硝酸银水溶液
E.
10%茚三酮水溶液
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举一反三
【简答题】Identify and briefly describe some of the forces that have resulted in increased global integration and the growing importance of global marketing.
【多选题】常温下，将某一元酸HA和NaOH溶液等体积混合，实验信息如下，下列判断不正确的是 实验编号 c（HA）/ mo1·L －l c（NaOH）/ mol·L －1 反应后溶液pH 甲 0.1 0.1 pH =9 乙 c 1 0.2 pH =7
A.
c l 一定等于0.2
B.
HA的电离方程式是HA H + +A －
C.
乙反应后溶液中：c（Na + ）=c（HA）+c（A 一 ）
D.
甲反应后溶液中：c（Na + ）>c（A 一 ）>c（OH 一 ）>c（H + ）
【简答题】Describe some of the trade-offs faced by each of the following: c. a professor deciding how much to prepare for class.
【简答题】Describe some of the trade-offs faced by each of the following: b. a company president deciding whether to open a new factory.
【简答题】Describe some of the global marketing strategies available to companies. Give examples of companies that use the different strategies.
【简答题】Describe some of the eating habits of the Chinese.
【简答题】Describe some of the advantages and disadvantages of using cloud computing and cloud storage.
【简答题】Describe some of the trade-offs faced by
each of the following: a. family deciding whether to buy a new
car
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