在顺序表中进行插入操作时，若插入位置在表的中间，平均需要移动多少个结点？

在数据库中，哪种约束用于确保列中的所有值都是唯一的？

在Java中，关于类中方法的命名，以下说法正确的是：

A student is attempting to translate a complex English sentence into their native language. The original sentence includes a conditional clause, a passive voice construction, and a long noun phrase acting as the subject. During translation, the student encounters difficulties with retaining the original sentence's passive structure while accurately capturing the nuance of the conditional clause and the complex subject. Based on translation principles, which of the following translation strategies is most likely to lead to an inaccurate or misleading translation?

为了增加内存空间的利用率和减少溢出的可能性，两个栈共享一片连续的内存空间时，应将两栈的什么部分分别设在这片内存空间的两端？