I am always delighted when I receive an e-mail from you.       the party on July 1^st, I shall be pleased to attend.

A．On account of

B．In response to

C．In view of

D．With regard to

货源集中区域投放是指某品牌卷烟在某一时间段集中投放给了某一区域的（）。

A、零售户

B、加油站

C、加盟店

D、便利店