题目内容

_是目前最常用也是最重要的一种数据模型。采用该模型作为数据的组织方式的数据库系统称为_。

查看答案

搜索结果不匹配？点我反馈

更多问题

Men differ from animals they can think and speak. (2008)

A. for which
B. for that
C. in that
D. in which

Above the trees are the hills, magnificence the river faithfully reflects on the surface. (2003)

A. where
B. of whose
C. whose
D. which

–Does Alan like hamburgers? (2003)-Yes. So much that he eats them almost every day.

A. for
B. as
C. to
D. so

They overcame all the difficulties and completed the project two months ahead of time, _______is something we had not expected. (2003)

A. which
B. it
C. that
D. what