The Customs shall reply in writing within ______ from the date of receipt of the application for the refund of the duty paid and notify the applicant of its decision.

A．one month

B．two months

C．three months

D．six months

患者，男，20岁。突发胸闷，气急，咳嗽。听诊：两肺布哮鸣音。应首先考虑的（）

A.慢性支气管炎喘息型

B.急性支气管炎

C.心源性哮喘

D.支气管哮喘

E.气胸