表学生.DBF中共有20个记录,顺序执行下面命令: SET DELETED OFF USE 学生 DELETE COUNT TO AA PACK COUNT TO AA ZAP COUNT TO AA USE 3次COUNT 得到的AA结果分别为()
A:19,19,1
B:19,19,0
C:20,19,0
D:20,19,19
出自:计算机科学