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【简答题】
旅游产品生命周期包括哪些阶段？
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皮皮学刷刷变学霸
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【单选题】听力原文：M: After two weeks of tennis practice lessons, I think I have finally managed to improve my backhand. W: Like my mum always says, 'Practice makes perfect.' Q: What does the woman mean? (14)
A.
Her backhand is almost perfect.
B.
The time the man spent practicing has helped him.
C.
The man's mother wanted him to .practice.
D.
Her mother is a good tennis coach.
【简答题】在规范团号的书写中,我们要运用到交通等级的代码,铁路硬座用字母( ) 表示。