What a pity. Considering his ability and experience,   he ________ better. [      ]

A. need have done              

B. must have done

C. can have done                

D. might have done

患者牛某，女，42岁，财务人员。汗出恶风，周身酸楚，时寒时热，心胸不适，舌质紫暗或有瘀点、瘀斑，脉弦涩。治疗最宜选用（）

A.桃核承气汤

B.活血通络汤

C.通幽汤

D.附子理中汤

E.血府逐瘀汤