在TEACHER表中,已经为该表建立了索引表达式为姓名字段,索引名为XM的普通索引。打开表TEACHER并设置其为当前有效索引的正确命令是 A)USE TEACHER INDEX 姓名 B)USE TEACHER ORDER XM C)SET INDEX TO XM D)USE TEACHER IN XM
参考答案:
In the second sentence, Paragraph 2, the word "pre
In the second sentence, Paragraph 2, the word "press" means .[ 2.2 分 ]A.public