[填空题]消除列重复的关键字是_________，使用_________操作符从多个查询中创建单结果集，提交一个事务的语句为________ 。

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• ●    All tudent are eager to know ______________they wilt pa the exam or not
• ●    The alutation i written fluh with th________margin________pace or line below the inide addre.
• ●    The alutation i written fluh with th________margin________pace or line below the inide addre.
• ●    Table______ of tone or wood.
• ●    Do you feel like ________ to a film or would you rather ________ at home.
• ●    Without water, _________ no plant or animal.
• ●    I am wondering if they are ____ or____.
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• ●    17— Which one do you prefer, the window eat or the aile eat? —____________ ( )
• ●    消除列重复的关键字是_________，使用_________操作符从多个查询中创建单结果集，提交一个事务的语句为________ 。