多选题
Which two statements are true about the primary key constraint in a table？ （）
发布日期：2020-04-10
It is not possible to disable the primary key constraint.
It is possible to have more than one primary key constraint in a single table.
The primary key constraint can be referred by only one foreign key constraint.
The primary key constraint can be imposed by combining more than one column.
The non-deferrable primary key constraint creates an unique index on the primary key column if it is not already indexed.
题王网让考试变得更简单
扫码关注题王，更多免费功能准备上线！
此试题出现在
CMS专题
CMS专题
其他考试
So I have a number of other up my sleeve， as well（）.
佝偻病的康复治疗方法哪项不正确（）。
根据《建筑市场诚信行为信息管理办法》建筑市场诚信行为记录信息的公布期限一般为（）。*
光纤传输的是光脉冲信号。
在实际测量中选择仪表时，对仪表的类型、（）、频率范围、内阻、量限等要全面考虑。
对支承轴瓦内的巴氏合金有什么要求？
男，70岁，原有高血压病，近来工作繁忙，常有头痛。昨日下午，突然咳出大量粉红色泡沫痰，大汗淋漓，口唇青紫，面色灰白，测血压26．64／15．99kPa，双肺满布湿啰音本病因何咯大量粉红泡沫痰（）。
为天然的脂溶性抗氧化剂的是（）。
男性，54岁。胸闷、劳累后胸痛4年，疑诊肥厚型心肌病来诊。下列哪项有助于区别肥厚型梗阻性心肌病和陈旧性心肌梗死（）
You are developing an ASP.NET Web page. You add a data-bound GridView control. The GridView contains a TemplateField that includes a DropDownList. You set the GridViews ClientIDMode property to Static， and you set the ClientIDRowSuffix property to ProductID. You need to be able to reference individual DropDownList controls from client-side script by using the ProductID. What should you set the ClientIDMode property of the DropDownList to？ （）
暂无相关推荐~
Which of the following statements is TRUE about the primary system dump device?（...
Which two statements are true about the primary address on an interface?（）
Which two statements are true about the primary key constraint in a table？ （）
Which two statements are true about the primary address on an interface? （）
Which two statements are true about the primary address on an interface?（）
Which of the following statements are true? (Indicate all such statements.)
Concerning the figure below, if a =b, which of the following statements must be ...
Given. Which two statements are true？（）
Given Which two statements are true？（）
Which one statements is true？（）