MRO测量报告中，包含（）字段，通过结合基站的经纬度，可以确定采样点所在的方位角。

A.VALUE_ERROR
B.ZERO_DIVIDE
C.STORAGE_ERROR
D.SELF_IS_NULL

A.alter table TDLTE_MRO_LOCATE_HOURadd distance number
B.alter table TDLTE_MRO_LOCATE_HOURmodify distance number
C.alter table TDLTE_MRO_LOCATE_HOURdrop column distance
D.alter table TDLTE_MRO_LOCATE_HOURrename column disance to distance1

A.DBA_SUBPARTITION
B.DBA_SEGMENTS
C.DBA_TABLESPACES
D.DBA_PARTITION