The most extended elective system and the most restricted elective system are alike in this respect.

在这一点上,这个最大范围的选举系统和最大限制的选举系统是一回事.

In this paper we deal with some security techniques applied to network elective system and the …

介绍了一种可行的网上选课系统的规划、流程以及所采取的安全技术。