A.数据编辑
B.数据变换
C.数据更新
D.数据匹配

A.计算机软硬件系统、地理数据和用户
B.计算机软硬件系统、地理数据和分析程序
C.计算机软硬件系统、地理数据和绘图机
D.计算机软硬件系统、网络和用户

A.在专题图上均匀划分网格，确定逐个网格的代码
B.从矢量数据转化得到
C.按行和列逐点扫描专题地图
D.野外调查

A．The courage to sacrifice their own lives for the keeping of promise
B．The determination to come to other's rescue at all risks
C．The ambition to usurp the throne
D．The unwillingness to boast about one's own abilities and virtues