扫描二维码用手机观看
温馨提醒：如果不能播放，清理浏览器缓存重新载入或者换其他播放源！
枪炮病菌与钢铁
BasedonJaredDiamond’sPulitzerPrize-winningbookofthesamename,Guns,GermsandSteeltraceshumanity’sjourneyoverthelast13,000years-fromthedawnoffarmingattheendofthelastIceAgetotherealitiesoflifeinthetwenty-firstcentury.
