国产sm精品全国_最新亚洲精品视频在线_天天看在线视频国产_精品三级不卡在线观看视频

The 89th anniversary of the death of Sun Yatsen and the opening ceremony of Commemoration Exhibition of Yang Xianyi were held in the Former Residence of Sun Yatsen on 12th,

Under the inspiration of Sun Yatsen’s thought of “saving the nation through aviation”, a lot of revolutionary youth from home and abroad were devoted themselves into national aviation cause, including Yang Xianyi, honored as “father of revolutionary air force”. In order to honor the outstanding achievements made by Yang Xianyi, Sun Yatsen and so many revolutionists, a commemoration exhibition was opened.