在交流中使用哪种技巧可以帮助对方从抽象思考回到现实？

采用统一编址法时，外设端口和内存单元的区分依据是：

A research study aims to investigate the impact of a new educational program on student performance. The study involves two groups of students: an experimental group that participates in the new program, and a control group that follows the traditional curriculum. If a pre-test is administered to both groups to establish a baseline for performance, what is the most important reason for random assignment of students to the two groups?

吕白在内容生产上的早期经历说明了什么？

在Java中，如果Swallow类新增了一个公共方法fly()，那么以下哪个选项正确地描述了Swallow类与Bird类之间的关系？