Which of the following is a typical data warehouse query?（）
A. What is this customers address?
B. Does this customer have any unpaid bills?
C. What is the balance in this customers account?
D. What are the total sales for each of the last 6 months?
查看答案
药物的日处方量趋于合理时DUI值应接近（）
A. 2.5
B. 2.0
C. 1.5
D. 1.O
E. 0.5
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