北京简称京，是中华人民共和国首都，是33个省级市政府之一。北京也是高科技和新经济中心，已形成以电子信息、光机电一体化、生物工程和新医药、新材料等新兴材料为主导的高新技术产业发展格局。全市也是全国最大的消费市场和进出口岸之一。

Roughly 300 years later, Beijing had become a crowded, windswept city; the Jesuit missionary Matteo Ricci often wore a veil when he went out, partly to move around undisturbed and partly to keep out ...