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Material Girl no more? Madonna says writing children’s books is more satisfying than being a movie star. Her book, The English Roses, wen t on sale on September 15th, appearing in 100 countries and in 30 languages as the first in her series of tales for children. The pop diva (女歌唱家), whose only book until now was the 1992 photo essay titled “Sex”, said she wrote the books to teach children some of the life lessons she’s learned over the years. “The most fun that I’ve had of all the things I’ve done successfully has been to write these books. A lot of it has to do with the下表是华盛顿、釜山、多伦多、马尼拉四个城市的地理数据，读表后完成四个城市中,人口密度最小的是：A．华盛顿         B．釜山         C．多伦多        D．马尼拉