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【单选题】
某研究者准备通过分析800人的血压资料以评价当地高血压患病情况,问可以考虑将血压测量值按哪种变量类型进行处理A.
计量资料
B.
计数资料
C.
等级资料
D.
其余均可
E.
其余均不可
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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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