白鹤滩水电站的项目业主是（）。
A.中国三峡总公司
B.二滩水电开发有限责任公司
C.国家电网
D.中国葛洲坝集团有限公司
参考答案：A
A shore is a piece of securing dunnage that（）.
A.runs from a low supporting level up to the cargo at an angle
B.is also known as a distance piece
C.is placed on the deck under the cargo to distribute its weight evently
D.is run horizontally from a support to the cargo
比较某地成年男子身高和体重两组数据变异度大小可选择的指标是（）
A.四分位数间距
B.变异系数
C.标准差
D.方差
E.极差
