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这种隔离对旅行成本和情绪都有影响，游客不太可能访问具有这种规范的目的地。他一生都住在费城附近，非常欣赏这座城市所提供的文化、美丽、激情和历史。4。"。　　While people are floating, brain waves appear to change significantly, β brain waves are significantly weakened, α brain waves (blue) θ brain waves (green) are significantly enhanced and the left and right brains are in equilibrium and stable state, indicating the brain's thinking ability at this time。