Some people may be protected from the ___1___ that often ___2___ aging: yes, musicians. Scientists gave hearing tests to 74 musicians and 89 non-musicians. For the study, musicians http://www.24en.com/p/231858.html
英语作文：一切刚开始:本文由作文地带整理分享，希望各位网友喜欢。
"We are reading the first verse of the first chapter of a book whose pages are infinite…”
“我们正在读一本书的第一章第一行，这本书的页数是... http://www.joozone.com/gaokao/803478.html