本次讲座的演讲者是谁？Who is the lecturer of the lecture?
郭老师Guo laoshi
廖老师Liao laoshi
梁老师Liang laoshi
赵老师Zhao laoshi
你对这次讲座的内容满意吗？Are you satisfied with the content of this lecture?（1 means very dissatisfied, and 5 means very satisfied）
这次讲座你学到了什么？What have you learned from this lecture?
请写出今天学到的一个成语。Please write down one Chinese idiom you learned today.