原发性肝癌早期转移途径为（）

A.肺内转移

B.淋巴转移

C.直接浸润转移

D.肝内转移

E.骨转移

When should lessons learned be organized ？（）

A．During the project life cycle and at the end

B．At the end of the project during closing

C．After the end of the project at a project post-mortem meeting

D．Lessons learned can be organized when there is time available