 - Patients with advanced or metastatic gastric cancer or colorectal cancer who progress after second-line therapy or the above treatment protocol, or patients with advanced or metastatic hepatocellular carcinoma who progress after first-line chemotherapy, interventional therapy or targeted therapy shall be verified by histology or cytology; or patients with advanced or metastatic non-squamous non-small cell lung cancer who cannot be operated or fail to first-line therapy shall be verified by histology or cytology; 