北京
昨日，延慶區長城醒山季啟動儀式在八達嶺水關長城正式舉行。為守護世界文化遺產，倡導文明旅游，活動現場發布“城上垃圾不落地”倡議書。關城廣場設置垃圾兌換點，游客可憑垃圾兌換景區門票等禮品。
詳見05版攝影/本報記者袁藝
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