We really enjoy ourselves at the party. Thanks again, Mr. and Mrs. Brown.（）Just drop in whenever you feel like it.

A.Our great honour

B.Nice having you here

C.Nice you are here

D.With pleasure

鼻负压置换疗法的适应证是（）

A.急性鼻窦炎

B.鼻息肉

C.渗出性中耳炎

D.慢性额窦炎、蝶窦炎、筛窦炎

E.慢性上颌窦炎