- 問題詳情:TheGreatWallofChina,oneofthegreatestwondersoftheworld,wasenlistedintheWorldHeritagebytheUNESCOin1987.Justlikeagiganticdragon,theGreatWallwindsupanddownacrossdeserts,grasslandsandmountains,stretchingabout6,700kilometersfromeasttowestofChina.Wi...
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