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单项选择题Which SQL statement accepts user input for the columns to be displayed, the table name, and the WHERE condition?（）

A、SELECT &1, "&2" FROM &3 WHERE last_name = '&4';

B、SELECT &1, '&2' FROM &3 WHERE '&last_name = '&4'';

C、SELECT &1, &2 FROM &3 WHERE last_name = '&4';

D、SELECT &1, '&2' FROM EMP WHERE last_name = '&4';

  • C

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