题目

如图，在Rt△ABC中，∠C＝90°，BC＝3，AC=2，则tanB的值是__________． 答案：  —Good morning, Grand Hotel.     —Hello, I’d like to book a room for the nights of the 18th and 19th.     —_____.    A. What can I do for you?                   B. Just a minute, please.    C. What’s the matter?                       D. At your service