皮皮学，免费搜题
登录
搜题
【单选题】
以下关于关系二维表的叙述中,错误的是________ 。A.
对二维表操作的结果仍然是二维表
B.
关系模式确定后,二维表的内容是不变的
C.
二维表是元组的集合
D.
关系模式反映了二维表静态结构
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Combine each pair of sentences into one sentence, using subordination. If more than one subordinator is available, make more than one sentence. He had a sore throat. He had spoken for three hou...
【多选题】What are the two purposes for using substitution term? (More than one answer)
A.
To replace the former education of grammatical terms
B.
To avoid the misunderstanding
C.
To simplify the understanding to construct a quick reaction of verbal expressions
D.
To make a precise approach for better human interaction
【单选题】If we are using the same chart of account in more than one company code, ( ).
A.
the company code segments are same in all company codes
B.
the currency in company code segment in all company codes is the same.
C.
the group account number is different in all company codes.
D.
The account name and account number is the same in all company codes.
【多选题】Which one is true about Apple’s peculiar innovation process? (More than one correct answer)
A.
Insights do not move from users to Apple but the other way around.
B.
More than Apple listening to us, it’s us who listen to Apple.
C.
It contradicts the conventional management wisdom about innovation.
D.
Companies should start their innovation process by getting close to users and observe them using existing products to understand their needs.
【简答题】Combine each pair of sentences into one sentence, using subordination. If more than one subordinator is available, make more than one sentence. I lost my pen somewhere. The auditorium might be ...
【简答题】Combine each pair of sentences into one sentence, using subordination. If more than one subordinator is available, make more than one sentence. He didn't get up early enough. He missed the trai...
相关题目：