题目内容
Campers are usually those less well-off people who choose to go camping for economic reasons.
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Wealthy modern travelers tend to stay at luxurious hotels and enjoy the comforts they provide.
Camping sites provide more opportunities than holiday hotels for travelers to mix with people of various nationalities.
The future of the more independent kind of camping depends on the behavior of the campers themselves.
口底、颌下和颈部的蜂窝组织炎时，护士应特别警惕患者是否并发了（）
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