单项选择题
相对高程就是( )
A、地面点到假定水准面的垂直距离
B、地面点到大地水准面的倾斜距离
C、地面点到假定水准面垂直距离
D、地面点到假定水准面的倾斜距离
相对高程就是( )
A、地面点到假定水准面的垂直距离
B、地面点到大地水准面的倾斜距离
C、地面点到假定水准面垂直距离
D、地面点到假定水准面的倾斜距离
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单项选择题
The classification of student class designation (freshman, sophomore, junior, senior) is an example of
The classification of student class designation (freshman, sophomore, junior, senior) is an example of
A.a categorical random variable.
B.a discrete random variable.
C.a continuous random variable.
D.a parameter.