以下何者是缩窄性心包炎时肺功能损害的主要原因（）

A.肺循环淤血

B.肺与纵隔胸膜粘连

C.胸水

D.小气道改变

E.腹水

Under CPT，the( )bears all risks and additional costs occurring after the goods have been so delivered．

A．seller

B．buyer

C．freight forwarder

D．receiver