城市和农村男青少年身体健康状况无差异。
Health state of male youngsters were similar in city and countryside.
中国的第一男歌星，以说唱音乐为特色，迷倒千万中国青少年，可他又有什么值得我们学习的呢？
China's first male singer to rap music features captured the hearts of millions of Chinese youth, but he, what is worth learning it?
本文对兰州市3月—17周岁的儿童及青少年1320人，男660人，女660人进行了骨龄研究。
This paper studied the skeletal age of 1320 infants and adolescents of 3 months to 17 years (including 660 males, 660 females) in Lanzhou City.
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