【单选题】Liu had something to tell the manager, Mr. Smith, so he went to his place, entering the room and said, “________.”
A.
You are not busy, I hope
B.
Can I have a word with you, Mr. Smith
D.
I’m terribly sorry to trouble you, Mr. Smith
【简答题】猫传染性腹膜炎是猫科动物的一种慢性进行性高度致死性的病毒性传染病,本病有渗出型和非渗出型两种形式,其中渗出型以( )为特征,非渗出型以( ) 为特征。该病的病原为( ),是( )病毒科,( )病毒属成员。
【判断题】电视作品的节奏可以通过创作的多个环节来实现。