● 若总是以待排序列的第一个元素作为基准元素进行快速排序,那么最好情况下的时间复杂度为 (65) 。
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(33 )在关系代数中,下列哪一个等式是不确定的?
What does the author say about working memory?
[A] The number of stored items is limited.
[B] The information contained is lasting.
[C]lt stays only while you work.
[D] It stores numbers quickly.
If you want to work in Japan you should____.
『A] have some working experience
[B] know how to use computers
[ C]present good teaching plans
[D] speak several languages
● 某项目制定的开发计划中定义了3个任务,其中任务A 首先开始,且需要3周完成,任务 B 必须在任务A