下列说法中,符合语言规范具体要求的是()。
A、多说俏皮话
B、用尊称,不用忌语
C、语速要快,节省客人时间
D、不乱幽默,以免客人误解
E、语感自然,不呆板
参考答案:B, D, E
— Were you surprised by the ending of the film?
— No, I ______ the book, so I already knew the story.
A.was reading
B.had read
C.am reading
D.have read
知母清热泻火、生津润燥的药理学依据是什么?