为已经存在的表添加主键约束用到的关键字是()[br][/br](2.0) A: drop primary key B: add primary key C: create primary key D: show primary key

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2022-07-01 问题

为已经存在的表添加主键约束用到的关键字是()[br][/br](2.0) A: drop primary key B: add primary key C: create primary key D: show primary key

2021-04-14 问题

primary connector ________

2022-06-17 问题

Not contained in primary follicles A: Primary oocyte B: Follicular cell C: Zona pellucida D: Cumulus

2021-04-14 问题

are the primary broadcast media.

2021-04-14 问题

primary goalof your () is

2022-06-08 问题

three primary colors

2022-07-25 问题

主键( Primary key)

2021-04-14 问题

【单选题】 In doing a brainstorming activity, your primary purpose is _. 【单选题】 In doing a brainstorming activity, your primary purpose is _.

【单选题】 In doing a brainstorming activity, your primary purpose is ___________. 【单选题】 In doing a brainstorming activity, your primary purpose is ___________.

2022-05-27 问题

(It was) (in the primary) school (where) my teacher introduced (me to) computers.() A: It was B: in the primary C: where D: me to

2022-06-07 问题

You get a color by mixing two primary colors. A: primary B: tertiary C: analagous D: secondary

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