To answer the research question, three subquestions are devised.

为了回答研究问题，设计了三个子问题。

Research Question or Problem Statement

研究问题或问题的陈述

"That's an open research question," he said.

“那是一个有待研究的问题，”他说。

And this is already a research question.

这其实已经是一个研究问题了。

This is the research question of this paper.

这是本文的研究问题。