旅游是正在日益兴起的一种娱乐性健身活动。节假日,约上几个朋友一起旅游,观赏大自然的美景,真是令人心旷神怡,疲劳顿消。然而,在乘车旅游途中,还需提醒您注意:保持车内空气新鲜:良好的车内环境,给人以良性刺激和舒适感,有利于乘客的身心健康。车厢内人多,人体代谢产物也 Tourism is an increasingly entertaining fitness activity. Holiday, about a few friends traveling together, watching the beauty of nature, it is really relaxed and happy, fatigue fade away. However, on the road trip, but also need to remind you Note: to keep the car fresh air: a good interior environment, giving a healthy stimulation and comfort, is conducive to the physical and mental health of passengers. Many people inside the car, human metabolism also