QL1706 Plus Chemotherapy +/- Bevacizumab in 1L Treatment of R/mTNBC

1.The presence of any active autoimmune disease or a history of autoimmune disease (such as the following, but not limited to autoimmune hepatitis, interstitial pneumonia, uveitis, enteritis, hypophysitis, vasculitis, nephritis, hyperthyroidism;Those who suffer from vitiligo or whose asthma has been completely relieved in childhood and do not need any intervention in adulthood can be included; asthma that requires medical intervention with bronchodilators cannot be included); 2.Are currently using immunosuppressants or systemic steroid therapy to achieve immunosuppression ((in dosing exceeding 10 mg daily of prednisone equivalent), and are still using it within 2 weeks before enrollment; 3.Severe allergic reactions to other monoclonal antibodies; 4. Known history or evidence of interstitial lung disease or active non-infectious pneumonia; 5.Known central nervous system metastasis; 6.Known additional malignant tumors within the past 5 years (except cured basal cell carcinoma of the skin and cervical cancer in situ); 7. The presence of uncontrolled hypertension (systolic blood pressure >140mmHg or diastolic blood pressure >90mmHg) or dignosis with hypertensive crisis or hypertensive encephalopathy. Known history of hypertension are admitted to the study if their blood pressure is controlled below this standard and maintained with antihypertensive therapy.