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【单选题】
以下关于规则的叙述中,不正确的是( )。
A.
规则是数据库中对储存在表的列或用户定义数据类型中的值的规定和限制
B.
规则是单独存储的独立的数据库对象，表或用用户定义对象的删除、修改不会对与之相连的规则产生影响
C.
规则和约束不能同时使用
D.
表的列可以有一个规则及多个约束
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举一反三
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A.
fusibility.
B.
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hostility.
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【单选题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. You agreed to have houseguests for the holidays. What were you thinking? The id...
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【判断题】Love is the same for all people.
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【单选题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. When I arrived in Beijing more than five years ago, I had already given blood 7...
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what a good habit blood donation is
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【简答题】The British show a great love for the countryside and it is really nice and beautiful. A lot of people dream about living in the countryside, to enjoy the quiet and the air. Today, many people, both o...
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相关题目：
【单选题】What is it about love between two people of the same sex that creates such anger and 敌意 ? Which word is best for _敌意_?
A.
fusibility.
B.
hospitality.
C.
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【单选题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. You agreed to have houseguests for the holidays. What were you thinking? The id...
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【单选题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. When I arrived in Beijing more than five years ago, I had already given blood 7...
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what a good habit blood donation is
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that donors only gave 200 ml each time in China
D.
that most Chinese people were willing to donate blood
查看完整题目与答案
【判断题】成本核算的基本方法是以成本核算对象命名的。
A.
正确
B.
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【简答题】The British show a great love for the countryside and it is really nice and beautiful. A lot of people dream about living in the countryside, to enjoy the quiet and the air. Today, many people, both o...
查看完整题目与答案