【单选题】听力原文:W: Now, could you tell me where the idea for the business first came from? M: Well, the original shop was opened by a retired printer by the name of Gruby. Mr. Gruby, being left-handed himself, t...
【简答题】D If you've been paying attention, you know that corvids (crows, rooks and ravens) are remarkably intelt birds.Now these feathered geniuses have been given a job : six rooks have been trained to ...