According to the Customs Law, the duty-paying value of an import item should be its normal ( ) price which should be approved by Customs.

A．FOB

B．CIF

C．CFR

D．FCA

【题干】

主诉：女性，63岁，脓血便伴里急后重3天。

答题要求：请围绕以上主诉，口诉该患者现病史及相关病史应询问的内容。