患者，男，65岁，肠梗阻术后2天，突然出现左下肢疼痛。查：体温38．2℃，呼吸20次／分，脉搏88次／分，血压125／85mmHg，神清，痛苦貌，心肺（-），左下肢肿胀明显，触痛，浅静脉扩张，左股三角区可扪及条索状物。

如血管彩超检查可见左髂股静脉内条索状物，因条件限制仅予抗炎、抗凝、溶栓及对症治疗，3天后症状较前稍有好转，此时最不宜采用下列哪种处理（）

A.手术治疗

B.溶血栓疗法

C.抗凝血疗法

D.物理治疗

E.卧床休息和抬高患肢

____, Franks never seems able to do the work satisfactorily. [ ]

A. As hard he tries

B. Try hard as he might

C. As hard as he tries.

D. Try, as hard as he might