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【单选题】
听力原文：W: I only want to get a can of juice to my room. M: You don't have to wait in the food line for that. There's a machine near that stack of trays. Where does this conversation probably take place?A.
At a movie theatre.
B.
At a cafeteria.
C.
At a supermarket.
D.
At a laundry.
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