内生性软骨瘤的治疗方案应选择()
A.刮除植入松质骨
B.肿瘤段切除
C.必要时可行人工关节置换手术
D.截肢术
E.放疗、化疗、手术相结合
参考答案:A
The old woman was ___ tired ___ go any farther. [ ]
A.too, to
B.so, as
C.very, to
D.much, to