根据需要，可将数个道岔组成道岔区，设（）领导道岔区的工作。
参考答案：扳道长
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
