校园里,马路上、公共汽车上,常可见到一些青少年两耳戴着耳机,在用随身听收听音乐和广播。最近,有关专家发出警告:长时间应用随身听会影响听力和健康,尤其对青少年的危害更甚,不可掉以轻心! 据测定,随身听即使放在低位收听摇滚乐其噪声已超过90分贝。青少年身体发育尚未成熟,特别容 On campus, on the road, on buses, you can often see some teenagers wearing earphones in their ears and listening to music and radio with their walkman. Recently, the experts warned: prolonged use of Walkman will affect hearing and health, especially for young people even more dangerous, can not be taken lightly! According to the measured, even if the player listen to rock music in the low noise of more than 90 dB. Adolescent physical development is not yet mature, especially capacity