Often they give up sport, _________they have no time _______after their work.

A．saying, leaving

B．said, left

C．saying, left

D．said, leaving

ⅡA期股骨下端骨肉瘤经化疗有效，适合的治疗是（）

A.囊内切除

B.边缘性切除

C.扩大切除

D.根治性切除

E.截肢手术