你可以尝试以下的询问方式:
1. "May I know the shipping terms for this inquiry? FOB CNF or CIF?"
2. "I'm interested in placing an order with you but could you please clarify the shipping terms? Will it be FOB, CNF or CIF?"
3. "Could you please let me know which shipping terms you offer for this product? FOB, CNF or CIF?"
这些问题是非常基础的问法,供你参考。在提出任何问题之前,最好了解你需要了解的信息,并准备一个清晰的问题,这样可以更好地获得你需要的答案。希望能对你有所帮助。