---- Lily, nice to see you ! ______ to England ? ---- Yes. And I will come back in a week. ( )(本题3.5分) A、 Have you gone B、 Are you going C、 Have you been D、 Did you go
参考答案:
执行命令"INDEX ON 成绩 TAG CJ "建立索引后,下列叙述正确的是 A)此命令所建索引
执行命令"INDEX ON 成绩 TAG CJ "建立索引后,下列叙述正确的是 A)此命令所建索引的索引表达式是"CJ" B)此命令所建索引的索引名是"成绩