topic type的用法和樣例：
例句
- He had never met this type of question before and was suddenly baffled.
他從未見過這種題型，一下子懵了。 - Finally, a set of suggestions were proposed to enhance the positive backwash and carry out further study on this question type.
最後，通過這些分析與調查，本文對如何促進改錯題的積極反撥作用和進一步研究此類題型提出了一系列建議。
