_______ mainly for the invention of the telephone, Alexander Graham Bell devoted his life to

helping the deaf. [ ]

A. Remembered

B. To be remembered

C. Having been remembered

D. Though remembered

男，21岁。左小腿因外伤手术后经常自伤口处流脓3年余。伤口愈合后无任何症状，破溃流脓时发热、局部肿胀，反复多次发作，现局部流脓，有时流出小碎骨片。

最合理的进一步检查是（）

A.拍X线平片

B.放射性核素扫描

C.B超

D.MRI

E.局部血管造影