A Jian 10（Fighter-10）, China's most advanced military jet, made      successful landing after         engine failure．

A．a；an    B．不填；an    C．a；the    D．the；不填

A Jian 10（Fighter-10）, China's most advanced military jet, made      successful landing

after         engine failure．

A．a；an           B．不填；an             C．a；the           D．the；不填