CAPM项目评估

def solve(____):
    required_return = rf + project_beta * (____)
    accept = project_return > required_return
    npv_indicator = "____" if accept else "____"
    return {"____": project_beta, "____": round(____), "____": project_return, "____": "____" if accept else "____", "____": npv_indicator}