Recombinant Peglated human erythropoietin(China Resources Angde Biotech Pharma Co., Ltd.)

Primary objective: To evaluate the safety and tolerability of a single dose of polyethylene glycol recombinant human erythropoietin injection (CHO cells) in healthy Chinese subjects. Secondary objectives: (1) To evaluate the pharmacokinetic characteristics of a single dose of polyethylene glycol recombinant human erythropoietin injection (CHO cells) in healthy Chinese subjects; (2) To preliminarily evaluate the pharmacodynamic characteristics of a single dose of polyethylene glycol recombinant human erythropoietin injection (CHO cells) in healthy Chinese subjects; (3) To preliminarily evaluate the immunogenicity of a single dose of polyethylene glycol recombinant human erythropoietin injection (CHO cells) in healthy Chinese subjects;