单选题:SQL查询命令的结构是SELECT…FROM…WHERE…GROUP BY…HAVING…ORDER BY…,其中指定查

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题目内容:
SQL查询命令的结构是SELECT…FROM…WHERE…GROUP BY…HAVING…ORDER BY…,其中指定查询条件的短语是(  )。 A.SELECT
B.FROM
C.WHERE
D.ORDER BY

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