按十六姐的要求,把原来那个科普帖的内容加以整合,以方便大家观看
原帖地址
http://tieba.baidu.com/f?z=846882939&ct=335544320&lm=0&sc=0&rn=30&tn=baiduPostBrowser&word=%B7%FB%CA%AF%B9%A4%B3%A7&pn=0
原帖地址
http://tieba.baidu.com/f?z=846882939&ct=335544320&lm=0&sc=0&rn=30&tn=baiduPostBrowser&word=%B7%FB%CA%AF%B9%A4%B3%A7&pn=0