...1.Non-squamous NSCLC patients confirmed by imaging and histopathology as III B to IV stage; 2.Positive EGFR gene mutation (including 19DEL, 21L858R, G719A, G719C, G719S, L861Q, V689M, N700D, E709K/Q, S720P, L858R, N826S, A839T, K846R, G863D, G719X, S768I complex mutation, G719X complex mutation, etc.); 3.Has not received any previous systemic anti-tumor therapy; 4.No brain metastases, or asymptomatic brain metastases, or symptomatic brain metastases are treated and stable....