关于第二次给客户致电，对于第一次感兴趣但需要考虑的客户，时间间隔应不多于（）
A. 不多于三天
B. 不少于一周
C. 不少于二周
D. 不少于三周
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Identify three situations in which you would NOT be able to drop a tablespace. （）
A. when the tablespace is online
B. when the tablespace has segments with data in it
C. when the tablespace is a default permanent tablespace for the database
D. when the tablespace contains a table that is currently being used by transactions
E. when the tablespace contains undo data that is needed to rollback an uncommitted transactio
资产阶级革命的口号是“自由、平等、博爱”。
A. 正确
B. 错误
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