To accurately grasp the rich connotation of the special challenges of the large party,it is necessary to start from the unique identity of the CPC as a political party,from the key concept of"challenges",and scientifically grasp the important qualifying catego...MORE To accurately grasp the rich connotation of the special challenges of the large party,it is necessary to start from the unique identity of the CPC as a political party,from the key concept of"challenges",and scientifically grasp the important qualifying category of"unique".From the four dimensions of nature,scale,role and status,t...