Please click those links and full fill the application information yourself.
One for each.
Intern Tech Yahoo, Software Dev Eng (aka 马工 intern) http://j.rfer.us/YHOEpPCqE
Service Engineer Operations Intern (aka IT intern) http://j.rfer.us/YHOaqhCqF
Production Engineering Intern, Central Technology http://j.rfer.us/YHOQUcCqG