科技档案号J•C•02—03的编制方法称为（）。
A、混合号码制
B、单纯号码制
C、大流水号
D、分类流水式档号
参考答案：A
Which of the following statements about statistical concepts is FALSE（）
A. A frequency is a tabular display of data summarized into a relatively small number of intervals.
B. An interval is a set of return values within which an observation not falls.
C. A parameter is an descriptive measure of a population characteristic.
表中七个城市2008年的国内生产总值之和与以下哪个最接近( )
A．3.2万亿元B．3.4万亿元C．3.6 万亿元D．3.8万亿元
