精选优质文档-倾情为你奉上联合培养博士推荐信联合培养博士推荐信dear prof. xxx:xxx requested a letter of reference from me to support his application for dual culture doctoral staged training under your guidance. as his domestic supervisor, i am pleased to ply with his request.xx joined my research center in september xxxx, and started his doctoral study under my guidance. during his undergraduate study, his terminal result is always outstanding. and he had magazine paper published on his interested ac