【简答题】The United States of America is the most culturally diverse(多样化) country in the world in terms of culture religion, ethnicity(种族) and ual orientation. As a combination of various races and cultures...
【简答题】Deserts stir the human imagination. They occupy nearly one-sh of the world's land suce area, but carry only four percent of the human population. The immense spaces of the desert have inspired...