：‍以下哪个不是用于解释的常用句型？‌A: In my opinion, there are three reasons. Firstly, … Secondly, …. Thirdly, B: I’d like to hear your opinion about C: One of the best explanations to this issue is D: Explanations to this phenomenon are twofold. For one thing, … For another thing,答案: I’d like to hear your opinion about 9、