晚期肝癌，肝内播散，应行（）
A.肝段切除
B.肝叶切除术
C.半肝切除
D.肝动脉栓塞化疗
E.非手术治疗
参考答案：E
统计调查的意义是什么？
Questions 27-30
A．He writes comic stories.
B．He draws pictures for comic books.
C．He teaches painting in an art school.
D．He compiles comic books with other writers.
