8. Functions within 7 days prior to enrollment: Blood routine test: Hb ≥ 80g/L, absolute neutrophil count ≥1.5 × 109/L, platelet ≥60 × 109/L; Total bilirubin ≤ 1.5 times of normal maximum, ALT/AST≤ 2.5 times of normal maximum, for patients with liver metastasis ALT/AST≤ 5 times of normal maximum; serum creatinin≤1.5 times of normal maximum or CCr≥ 60ml/min;